How To Build A Bathroom In Florida

Transcription

1 FLORIDA BUILDING CODE 2004 Residential

2 PREFACE History The State of Florida first mandated statewide building codes during the 1970s at the beginning of the modern construction boom. The first law required all municipalities and counties to adopt and enforce one of the four state-recognized model codes known as the state minimum building codes. During the early 1990s a series of natural disasters, together with the increasing complexity of building construction regulation in vastly changed markets, led to a comprehensive review of the state building code system. The study revealed that building code adoption and enforcement was inconsistent throughout the state and those local codes thought to be the strongest proved inadequate when tested by major hurricane events. The consequences of the building codes system failure were devastation to lives and economies and a statewide property insurance crisis. The response was a reform of the state building construction regulatory system that placed emphasis on uniformity and accountability. The 1998 Florida Legislature amended Chapter 553, Florida Statutes, Building Construction Standards, to create a single state building code that is enforced by local govemrnents. As of March 1, 2002, the Florida Building Code supercedes all local building codes which are developed and maintained by the Florida Building Commission. It is updated every three years and may be amended annually to incorporate interpretations and clarifications. Scope The Florida Building Code is based on national model building codes and national consensus standards which are amended where necessary for Florida specific needs. The Code incorporates all building construction-related regulations for public and private buildings in the State of Florida other than those specifically exempted by Section , Florida Statutes. It has been harmonized with the Florida Fire Prevention Code, which is developed and maintained by the Department of Financial Services, Office of the State Fire Marshal, to establish unified and consistent standards. The base codes for the 2004 edition of the Florida Building Code include: the International Building Code, 2003 edition; the International Plumbing Code, 2003 edition; the International Mechanical Code, 2003 edition; the International Fuel Gas Code, 2003 edition; the International Residential Code, 2003 edition; the International Existing Building Code, 2003 edition; the National Electrical Code, 2002 edition; the U. S. Department of Housing and Urban Development, Fair Housing Guidelines, and; substantive criteria from the American Society of Heating, Refrigerating and Air-conditioning Engineers (ASHRAE) Standard State and local codes adopted and incorporated into the Code include the Florida Energy Efficiency Code for Building Construction, the Florida Accessibility Code for Building Construction and special hurricane protection standards for the High Velocity Hurricane Zone. The code is composed of 6 main volumes: the Florida Building Code, Building, which also includes Chapter 13 (energy efficiency) and Chapter 11 (accessibility) as well as state facility licensing agencies regulations; the Florida Building Code, Plumbing; the Florida Building Code, Mechanical; the Florida Building Code, Fuel Gas; the Florida Existing Building Code; and the Florida Residential Code. Chapter 27 of the Florida Building Code, Building, adopts the National Electrical Code, NFPA 70, by reference. Chapter 33 of the Florida Residential Code adopts the National Electrical Code Requirements for One- and Two-Family Dwellings, NFPA 70A, by reference. Under certain strictly defined conditions, local governments may amend requirements to be more stringent than the Code. All local amendments to the Florida Building Code must be adopted by local ordinance and reported to the Florida Building Commission then posted on the web site in Legislative format for a month before being enforced. Local amendments to the Florida building Code and the Florida Fire Prevention Code may be obtained from the Florida Building Commission web site, or from the Florida Department of Community Affairs or the Florida Department of Financial Services, Office of the State Fire Marshal, respectively. Adoption and Maintenance The Florida Building Code is adopted and updated with new editions triennially by the Florida Building Commission. It is amended annually to incorporate interpretations, clarifications and to update standards. Minimum requirements for permitting, plans review and inspections are established by the code, and local jurisdictions may adopt additional administrative requirements that are more stringent. Local technical amendments are subject to strict criteria established by , F.S. They are subject to Commission review and adoption into the Code or repeal when the Code is updated triennially and are subject to appeal to the Commission according to the procedures established by , F.S. Nine Technical Advisory Committees (TACs) review proposed code changes and clarifications of the code and make recommendations to the Commission. TAC membership is established using American National Standards Institute (ANSI) guidelines for consensus standards development committees with, by category, three producers (contractors or manufacturers), three consumers (designers or representatives of building owners), and five general (building department personnel, scientists, representatives of impacted parties). The TACs include: Joint Building Fire (a joint committee of the Commission and the State Fire FLORIDA BUILDING CODE iii

3 Marshal); Building Structural; Plumbing and Fuel Gas; Mechanical; Electrical; Energy; Accessibility; Special Occupancy (state agency construction and facility licensing regulations); and Administrative/Enforcement. The Commission may only issue official code clarifications using procedures of Chapter 120, Florida Statutes. To obtain such a clarification, a request for a Declaratory Statement (DEC) must be made to the Florida Building Commission in a manner that establishes a clear set of facts and circumstances and identifies the section of the code in question. Requests are analyzed by staff, reviewed by the appropriate Technical Advisory Committee, and sent to the Florida Building Commission for preliminary action. Draft Declaratory Statements are subject to public comment and finalized by the Commission at its next meeting. DECs are provided to the requestor and posted on the Commission s web site, They serve as interpretation precedents for situations having similar facts and circumstances and are typically incorporated into the code in the next code amendment cycle. Marginal Markings Vertical lines in the margins within the body of the code indicate a change from the requirements of the base codes except where a change was minor. Deletion indicators (*) are provided in the margin where a paragraph or item listing has been deleted if the deletion resulted in a change of requirements. <NOT APPLICABLE IN ELECTRONIC VERSION> Acknowledgments The Florida Building Code is produced through the efforts and contributions of building designers, contractors, product manufacturers, regulators and other interested parties who participate in the Florida Building Commission s consensus processes, Commission staff and the participants in the national model code development processes. iv FLORIDA BUILDING CODE

4 2004 Florida Building Code, Residential First Printing Publication Date: July 2004 COPYRIGHT 2004 by INTERNATIONAL CODE COUNCIL, INC. ALL RIGHTS RESERVED. This 2004 Florida Building Code, Residential contains substantial copyrighted material from the 2003 International Residential Code for One- and Two-Family Dwellings, which is a copyrighted work owned by the International Code Council, Inc. Without advance written permission from the copyright owner, no part of this book may be reproduced, distributed, or transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of example and not limitation, photocopying, or recording by or in an information storage retrieval system). For information on permission to copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL (Phone ). Trademarks: International Code Council, the International Code Council logo and the International Mechanical Code are trademarks of the International Code Council, Inc. PRINTED IN THE U.S.A.

5 CHAPTER 25 PLUMBING ADMINISTRATION SECTION P2501 GENERAL P Scope. The provisions of this chapter shall establish the general administrative requirements applicable to plumbing systems and inspection requirements of this code. P Application. In addition to the general administration requirements of Chapter 1, the administrative provisions of this chapter shall also apply to the plumbing requirements of Chapters 25 through 32. [EB] SECTION P2502 EXISTING PLUMBING SYSTEMS P Existing building sewers and drains. Existing building sewers and drains shall be used in connection with new systems when found by examination and/or test to conform to the requirements prescribed by this document. P Additions, alterations or repairs. Additions, alterations, renovations or repairs to any plumbing system shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with all the requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded. Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved. SECTION P2503 INSPECTION AND TESTS P Inspection required. New plumbing work and parts of existing systems affected by new work or alterations shall be inspected by the building official to ensure compliance with the requirements of this code. P Concealment. A plumbing or drainage system, or part thereof, shall not be covered, concealed or put into use until it has been tested, inspected and approved by the building official. P Responsibility of permittee. Test equipment, materials and labor shall be furnished by the permittee. P Gravity sewer test. Gravity sewer tests shall consist of plugging the end of the building sewer at the point of connection with the public sewer, completely filling the building sewer with water from the lowest to the highest point thereof, and maintaining such pressure for 15 minutes. The building sewer shall be water tight at all points. P DWV systems testing. Rough and finished plumbing installations shall be tested in accordance with Sections P and P P Drainage and vent water test. A water test shall be applied to the drainage system either in its entirety or in sections. If applied to the entire system, all openings in the piping shall be tightly closed, except the highest opening, and the system shall be filled with water to point of overflow. If the system is tested in sections, each opening shall be tightly plugged except the highest openings of the section under test, and each section shall be filled with water, but no section shall be tested with less than a 5-foot (1524 mm) head of water. In testing successive sections, at least the upper 5 feet (1524 mm) of the next preceding section shall be tested so that no joint or pipe in the building, except the uppermost 5 feet (1524 mm) of the system, shall have been submitted to a test of less than a 5-foot (1524 mm) head of water. The water shall be kept in the system, or in the portion under test, for at least 15 minutes before inspection starts. The system shall then be tight at all points. P Finished plumbing. After the plumbing fixtures have been set and their traps filled with water, their connections shall be tested and proved gas tight and/or water tight as follows: 1. Water tightness. Each fixture shall be filled and then drained. Traps and fixture connections shall be proven water tight by visual inspection. 2. Gas tightness. When required by the local administrative authority, a final test for gas tightness of the DWV system shall be made by the smoke or peppermint test as follows: 2.1. Smoke test. Introduce a pungent, thick smoke into the system. When the smoke appears at vent terminals, such terminals shall be sealed and a pressure equivalent to a 1-inch water column (249 Pa) shall be applied and maintained for a test period of not less than 15 minutes Peppermint test. Introduce 2 ounces (59 ml) of oil of peppermint into the system. Add 10 quarts (9464 ml) of hot water and seal all vent terminals. The odor of peppermint shall not be detected at any trap or other point in the system. P Water-supply system testing. Upon completion of the water-supply system or a section thereof, the system, or portion completed, shall be tested and proved tight under a water pressure not less than the working pressure of the system; or, for piping systems other than plastic, by an air test of not less than 50 psi (344 kpa). The water used for tests shall be obtained from a potable water source. P Inspection and testing of backflow prevention devices. Inspection and testing of backflow prevention devices shall comply with Section P and Section P FLORIDA BUILDING CODE RESIDENTIAL 25.1

6 PLUMBING ADMINISTRATION P Inspections. Inspections shall be made of all backflow prevention assemblies to determine whether they are operable. P Testing. Reduced pressure principle backflow preventers, double check valve assemblies, double-detector check valve assemblies and pressure vacuum breaker assemblies shall be tested at the time of installation, immediately after repairs or relocation and at least annually. P Test gauges. Gauges used for testing shall be as follows: 1. Tests requiring a pressure of 10 psi or less shall utilize a testing gauge having increments of 0.10 psi or less. 2. Tests requiring a pressure of greater than 10 psi but less than or equal to 100 psi shall utilize a testing gauge having increments of 1 psi or less. 3. Tests requiring a pressure of greater than 100 psi shall utilize a testing gauge having increments of 2 psi or less FLORIDA BUILDING CODE RESIDENTIAL

7 CHAPTER 26 GENERAL PLUMBING REQUIREMENTS SECTION P2601 GENERAL P Scope. The provisions of this chapter shall govern the installation of plumbing not specifically covered in other chapters applicable to plumbing systems. P Connection. Plumbing fixtures, drains and appliances used to receive or discharge liquid wastes or sewage shall be connected to the sanitary drainage system of the building or premises in accordance with the requirements of this code. This section shall not be construed to prevent indirect waste systems. P Floodplain Management Construction Standards. This code specifically defers to the authority granted to local government by Title 44 CFR, sections 59 and 60. This code is not intended to supplant or supercede local ordinances adopted pursuant to that authority, nor are local floodplain management ordinances to be deemed amendments to the code. SECTION P2602 INDIVIDUAL WATER SUPPLY AND SEWAGE DISPOSAL P General. The water-distribution and drainage system of any building or premises where plumbing fixtures are installed shall be connected to a public water-supply or sewer system, respectively, if available. When either a public water-supply or sewer system, or both, are not available, or connection thereto is not feasible, an individual water-supply or individual (private) sewage-disposal system, or both, shall be provided. P Flood-resistant installation. In areas prone to flooding as established by Table R301.2(1): 1. Water supply systems shall be designed and constructed to prevent infiltration of floodwaters. 2. Pipes for sewage disposal systems shall be designed and constructed to prevent infiltration of floodwaters into the systems and discharges from the systems into floodwaters. load-bearing members shall only be permitted in accordance with Sections R506.2, R603.2 and R In accordance with the provisions of Sections R and R cutting and notching of flanges and lips of cold-formed steel-framed load-bearing members shall not be permitted. P Protection against physical damage. In concealed locations, where piping, other than cast-iron or galvanized steel, is installed through holes or notches in studs, joists, rafters or similar members less than 1.5 inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be a minimum of inch-thick (1.6 mm) steel, shall cover the area of the pipe where the member is notched or bored and shall extend a minimum of 2 inches (51 mm) above sole plates and below top plates. P Breakage and corrosion. Pipes passing through or under walls shall be protected from breakage. Pipes passing through concrete or cinder walls and floors, cold-formed steel framing or other corrosive material shall be protected against external corrosion by a protective sheathing or wrapping or other means that will withstand any reaction from lime and acid of concrete, cinder or other corrosive material. Sheathing or wrapping shall allow for expansion and contraction of piping to prevent any rubbing action. Minimum wall thickness of material shall be inch (0.64 mm). P Sleeves. Annular spaces between sleeves and pipes shall be filled or tightly caulked as approved by the building official. Annular spaces between sleeves and pipes in fire-rated assemblies shall be filled or tightly caulked in accordance with the building portion of this code. P Pipes through footings or foundation walls. Any pipe that passes under a footing or through a foundation wall shall be provided with a relieving arch; or there shall be built into the masonry wall a pipe sleeve two pipe sizes greater than the pipe passing through. P Freezing. In localities having a winter design temperature of 32 F(0 C) or lower as shown in Table R301.2(1) of this code, a water, soil or waste pipe shall not be installed outside of a building, in exterior walls, in attics or crawl spaces, or in any other place subjected to freezing temperature unless adequate provision is made to protect them from freezing by insulation or heat or both. Water service pipe shall be installed not less than 12 inches (305 mm) deep or less than 6 inches (152 mm) below the frost line. SECTION P2603 STRUCTURAL AND PIPING PROTECTION [EB] P General. In the process of installing or repairing any part of a plumbing and drainage installation, the finished floors, walls, ceilings, tile work or any other part of the building or premises that must be changed or replaced shall be left in a safe structural condition in accordance with the requirements of the building portion of this code. P Drilling and notching. Wood-framed structural members shall not be drilled, notched or altered in any manner except as provided in Sections R502.6, R602.5, R602.6, R802.7 and R Holes in cold-formed steel-framed of [NUMBER] inches (mm) below grade. P Sewer depth. Building sewers that connect to private sewage disposal systems shall be a minimum of [NUMBER] inches (mm) below finished grade at the point of septic tank connection. Building sewers shall be a minimum FLORIDA BUILDING CODE RESIDENTIAL 26.1

8 GENERAL PLUMBING REQUIREMENTS SECTION P2604 TRENCHING AND BACKFILLING P Trenching and bedding. Piping shall be installed in trenches so that the piping rests on solid and continuous bearing. When over excavated, the trench shall be backfilled to the proper grade with compacted earth, sand, fine gravel or similar granular material. Piping shall not be supported on rocks or blocks at any point. Rocky or unstable soil shall be over excavated by two or more pipe diameters and brought to the proper grade with suitable compacted granular material. P Common trench. See Section P P Backfilling. Backfill shall be free from discarded construction material and debris. Backfill shall be free from rocks, broken concrete and frozen chunks until the pipe is covered by at least 12 inches (305 mm) of tamped earth. Backfill shall be placed evenly on both sides of the pipe and tamped to retain proper alignment. Loose earth shall be carefully placed in the trench in 6-inch (152 mm) layers and tamped in place. P Protection of footings. Trenching installed parallel to footings shall not extend below the 45-degree (0.79 rad) bearing plane of the bottom edge of a wall or footing (see Figure P2604.4). 3. Hangers and anchors shall be of sufficient strength to maintain their proportional share of the weight of pipe and contents and of sufficient width to prevent distortion to the pipe. Hangers and strapping shall be of approved material that will not promote galvanic action. Rigid support sway bracing shall be provided at changes in direction greater than 45 degrees (0.39 rad) for pipe sizes 4 inches (102 mm) and larger. 4. Piping shall be supported at distances not to exceed those indicated in Table P SECTION P2606 WATERPROOFING OF OPENINGS P General. Roof and exterior wall penetrations shall be made water tight. Joints at the roof, around vent pipes, shall be water tight by the use of lead, copper or galvanized iron flashings or an approved elastomeric material. Counterflashing shall not restrict the required internal cross-sectional area of any vent. SECTION P2607 WORKMANSHIP P General. Valves, pipes and fittings shall be installed in correct relationship to the direction of the flow. Burred ends shall be reamed to the full bore of the pipe. SECTION P2608 MATERIALS EVALUATION AND LISTING P Identification. Each length of pipe and each pipe fitting, trap, fixture, material and device utilized in a plumbing system shall bear the identification of the manufacturer. P Installation of materials. All materials used shall be installed in strict accordance with the standards under which the materials are accepted and approved. In the absence of such installation procedures, the manufacturer s installation instructions shall be followed. Where the requirements of referenced standards or manufacturer s installation instructions do not conform to the minimum provisions of this code, the provisions For SI: 1 degree = rad. of this code shall apply. FIGURE P P Plastic pipe, fittings and components. All plastic PIPE LOCATION WITH RESPECT TO FOOTINGS pipe, fittings and components shall be third-party certified as conforming to NSF 14. P Third-party testing and certification. All plumbing products and materials shall comply with the referenced standards, specifications and performance criteria of this code and SECTION P2605 SUPPORT shall be identified in accordance with Section P When required by Table P2608.4, plumbing products and materials P General. Support for piping shall be provided in accordance with the following: shall either be tested by an approved third-party testing agency or certified by an approved third-party certification agency. 1. Piping shall be supported so as to ensure alignment and P Water supply systems. All water service pipes, water prevent sagging, and allow movement associated with distribution pipes and the necessary connecting pipes, fittings, the expansion and contraction of the piping system. control valves, faucets and all appurtenances used to dispense 2. Piping in the ground shall be laid on a firm bed for its entire length, except where support is otherwise provided. water intended for human ingestion shall be evaluated and listed as conforming to the requirements of NSF FLORIDA BUILDING CODE RESIDENTIAL

9 GENERAL PLUMBING REQUIREMENTS PIPING MATERIAL TABLE P PIPING SUPPORT MAXIMUM HORIZONTAL SPACING (feet) MAXIMUM VERTICAL SPACING ABS pipe 4 10 b Aluminum tubing Brass pipe Cast-iron pipe 5 a 15 Copper or copper alloy pipe Copper or copper alloy tubing (1 1 / 4 inch diameter and smaller) 6 10 Copper or copper alloy tubing (1 1 / 2 inch diameter and larger) Cross-linked polyethylene (PEX) pipe 2.67 (32 inches) 10 b Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe 2.67 (32 inches) 4 b CPVC pipe or tubing (1 inch in diameter and smaller) 3 10 b CPVC pipe or tubing (1 1 / 4 inch in diameter and larger) 4 10 b Lead pipe Continuous 4 PB pipe or tubing 2.67 (32 inches) 4 Polyethylene/aluminum/polyethylene (PE-AL-PE) pipe 2.67 (32 inches) 4 b PVC pipe 4 10 b Stainless steel drainage systems b Steel pipe For SI: 1 inch = 25.4 mm, 1 foot = mm. a. The maximum horizontal spacing of cast-iron pipe hangers shall be increased to 10 feet where 10-foot lengths of pipe are installed. b. Midstory guide for sizes 2 inches and smaller. TABLE P PRODUCTS AND MATERIALS REQUIRING THIRD-PARTY TESTING AND THIRD-PARTY CERTIFICATION PRODUCT OR MATERIAL THIRD-PARTY CERTIFIED THIRD-PARTY TESTED Backflow prevention devices Required Plumbing appliance Required Plumbing fixtures Required Potable water supply system components and potable water fixture fittings Required Sanitary drainage and vent system components Plastic pipe, fittings, and pipe related components All others Special waste system components Required Storm drainage system components Plastic pipe, fittings, and pipe related components All others Subsoil drainage system components Required Waste fixture fittings Plastic pipe, fittings, and pipe related components All others Water distribution system safety devices Required FLORIDA BUILDING CODE RESIDENTIAL 26.3

10 26.4 FLORIDA BUILDING CODE RESIDENTIAL

11 CHAPTER 27 PLUMBING FIXTURES SECTION P2701 FIXTURES, FAUCETS AND FIXTURE FITTINGS P Quality of fixtures. Plumbing fixtures, faucets and fixture fittings shall be constructed of approved materials, shall have smooth impervious surfaces, shall be free from defects and concealed fouling surfaces, and shall conform to the standards cited in this code. Plumbing fixtures shall be provided with an adequate supply of potable water to flush and keep the fixtures in a clean and sanitary condition without danger of backflow or cross connection. TABLE P PLUMBING FIXTURES, FAUCETS AND FIXTURE FITTINGS MATERIAL Air gap fittings for use with plumbing fixtures, appliances and appurtenances ASME A Bathtub/Whirlpool Pressure Sealed Doors ASME A Diverters for faucets with hose spray anti-syphon type, residential application ASSE 1025 Enameled cast-iron plumbing fixtures ASME A M Floor drains ASME A Framing-affixed supports for off-the-floor water closets with concealed tanks ASME A Handheld showers ASSE 1014 Home laundry equipment ASSE 1007 Hose connection vacuum breaker ASSE 1052 Hot water dispensers, household storage type, electrical ASSE 1023 Household dishwashing machines ASSE 1006 Household disposers ASSE 1008 Hydraulic performance for water closets and urinals ASME A Individual pressure balancing valves for individual fixture fittings ASSE 1066 Individual shower control valves anti-scald ASSE 1016 Macerating toilet systems and related components ASME A Nonvitreous ceramic plumbing fixtures ANSI A M Plastic bathtub units ANSI Z124.1 Plastic lavatories ANSI Z124.3 Plastic shower receptors and shower stall ANSI Z124.2 Plastic sinks ANSI Z124.6 Plastic water closet bowls and tanks ANSI Z124.4 Plumbing fixture fittings ASME A M Porcelain enameled formed steel plumbing fixtures ASME A M Pressurized flushing devices for plumbing fixtures ASSE 1037 Specification for copper sheet and strip for building construction ASTM B 370 Suction fittings for use in swimming pools, wading pools, spas, hot tubs and whirlpool bathtub appliances ASME A M Stainless steel plumbing fixtures (residential) ASME A M Temperature-actuated, flow reduction valves to individual fixture fittings ASSE 1062 Thermoplastic accessible and replaceable plastic tube and tubular fittings ASTM F 409 Trench drains ASME A Trim for water closet bowls, tanks and urinals ASME A Vacuum breaker wall hydrant-frost resistant automatic draining type ASSE 1019 Vitreous china plumbing fixtures ASME A M Wall-mounted and pedestal-mounted, adjustable and pivoting lavatory and sink carrier systems ASME A Water closet flush tank fill valves ASSE 1002 Whirlpool bathtub appliances ASME A M STANDARD FLORIDA BUILDING CODE RESIDENTIAL 27.1

12 PLUMBING FIXTURES SECTION P2702 FIXTURE ACCESSORIES P Plumbing fixtures. Plumbing fixtures, other than water closets, shall be provided with approved strainers. P Material for tail pieces and traps. Continuous wastes, waste and overflow fittings, traps and tail pieces constructed of seamless drawn brass shall be of No. 20 gage (0.8 mm) minimum thickness. P Plastic tubular fittings. Plastic tubular fittings shall conform to ASTM F 409 listed in Table P P Carriers for wall-hung water closets. Carriers for wall-hung water closets shall conform to ASME A or ASME A SECTION P2703 TAIL PIECES P Minimum size. Fixture tail pieces shall be not less than 1.5 inches (38 mm) in diameter for sinks, dishwashers, laundry tubs, bathtubs and similar fixtures, and not less than 1.25 inches (32 mm) in diameter for bidets, lavatories and similar fixtures. SECTION P2704 ACCESS TO CONNECTIONS P General. Slip joints shall be made with an approved elastomeric gasket and shall only be installed on the trap outlet, trap inlet and within the trap seal. Fixtures with concealed slip-joint connections shall be provided with an access panel or utility space at least 12 inches (305 mm) in its smallest dimension or other approved arrangement so as to provide access to the slip connections for inspection and repair. SECTION P2705 INSTALLATION P General. The installation of fixtures shall conform to the following: 1. Floor-outlet or floor-mounted fixtures shall be secured to the drainage connection and to the floor, when so designed, by screws, bolts, washers, nuts and similar fasteners of copper, brass or other corrosion-resistant material. 2. Wall-hung fixtures shall be rigidly supported so that strain is not transmitted to the plumbing system. 3. Where fixtures come in contact with walls and floors, the contact area shall be watertight. 4. Plumbing fixtures shall be functionally accessible. 5. The centerline of water closets or bidets shall not be less than 15 inches (381 mm) from adjacent walls or partitions or not less than 15 inches (381 mm) from centerline of a bidet to the outermost rim of an adjacent water closet. There shall be at least 21 inches (533 mm) clearance in front of the water closet, bidet or lavatory to any wall, fixture or door. 6. The location of piping, fixtures or equipment shall not interfere with the operation of windows or doors. 7. In areas prone to flooding as established by Table R301.2(1), plumbing fixtures shall be located or installed in accordance with Section R Integral fixture fitting mounting surfaces on manufactured plumbing fixtures or plumbing fixtures constructed on site, shall meet the design requirements of ASME A or ASME A SECTION P2706 WASTE RECEPTORS P General. Every waste receptor shall be of an approved type. Plumbing fixtures or other receptors receiving the discharge of indirect waste pipes shall be shaped and have a capacity to prevent splashing or flooding and shall be readily accessible for inspection and cleaning. Waste receptors and standpipes shall be trapped and vented and shall connect to the building drainage system. A removable strainer or basket shall cover the waste outlet of waste receptors. Waste receptors shall be installed in ventilated spaces. Waste receptors shall not be installed in bathrooms or in any inaccessible or unventilated space such as a closet. Ready access shall be provided to waste receptors. Exception: Open hub waste receptors shall be permitted in the form of a hub or pipe extending not less than 1 inch (25.4 mm) above a water-impervious floor, and are not required to have a strainer. P Standpipes. Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding. P Laundry tray connection. A laundry tray waste line is permitted to connect into a standpipe for the automatic clothes washer drain. The standpipes shall not be less than 30 inches (762 mm) as measured from the crown weir. The outlet of the laundry tray shall be a maximum horizontal distance of 30 inches (762 mm) from the standpipe trap. P Prohibited waste receptors. Plumbing fixtures that are used for domestic or culinary purposes shall not be used to receive the discharge of an indirect waste. Exceptions: 1. A kitchen sink trap is acceptable for use as a receptor for a dishwasher. 2. A laundry tray is acceptable for use as a receptor for a clothes washing machine. SECTION P2707 DIRECTIONAL FITTINGS P Directional fitting required. Approved directional-type branch fittings shall be installed in fixture tailpieces receiving the discharge from food waste disposal units or dishwashers FLORIDA BUILDING CODE RESIDENTIAL

13 PLUMBING FIXTURES SECTION P2708 SHOWERS P General. Shower compartments shall have at least 900 square inches (0.581 m 2 ) of interior cross-sectional area. Shower compartments shall not be less than 30 inches (762 mm) in minimum dimension measured from the finished interior dimension of the shower compartment, exclusive of fixture valves, shower heads, soap dishes, and safety grab bars or rails. The minimum required area and dimension shall be measured from the finished interior dimension at a height equal to the top of the threshold and at a point tangent to its centerline and shall be continued to a height not less than 70 inches (1778 mm) above the shower drain outlet. Exception: Fold-down seats shall be permitted in the shower, provided the required 900-square-inch (0.581 m 2 ) dimension is maintained when the seat is in the folded-up position. P Water-supply riser. The water supply riser from the shower valve to the shower head outlet shall be secured to the permanent structure. P Shower control valves. Showers and tub/shower combinations shall be equipped with control valves of the pressure balance, the thermostatic mixing or the combination pressure balance/thermostatic mixing valve types with high limit stops in accordance with ASSE The high limit stops shall be set to limit water temperature to a maximum 120 F (49 C). SECTION P2709 SHOWER RECEPTORS P Construction. Shower receptors shall have a finished curb threshold not less than 1 inch (25.4 mm) below the sides and back of the receptor. The curb shall be not less than 2 inches (51 mm) and not more than 9 inches (229 mm) in depth when measured from the top of the curb to the top of the drain. The finished floor shall slope uniformly toward the drain not less than one-fourth unit vertical in 12 units horizontal (2-percent slope) nor more than 0.5 inch (12.7 mm), and floor drains shall be flanged to provide a water-tight joint in the floor. P Lining required. The adjoining walls and floor framing, enclosing on-site built-up shower receptors shall be lined with sheet lead, copper or a plastic liner material that complies with ASTM D The lining material shall extend not less than 3 inches (76 mm) beyond or around the rough jambs and not less than 3 inches (76 mm) above finished thresholds. Hot mopping shall be permitted in accordance with Section P Exception: 1. Floor surfaces under showerheads provided for rising laid directly on the ground. 2. Shower compartments where the finished shower drain is depressed a minimum of 2inches below the surrounding finished floor on the first floor level and the shower recess is poured integrally with the adjoining floor. P Hot-mopping. Shower receptors lined by hot mopping shall be built-up with not less than three layers of standard grade Type 15 asphalt-impregnated roofing felt. The bottom layer shall be fitted to the formed subbase and each succeeding layer thoroughly hot-mopped to that below. All corners shall be carefully fitted and shall be made strong and water tight by folding or lapping, and each corner shall be reinforced with suitable webbing hot-mopped in place. All folds, laps and reinforcing webbing shall extend at least 4 inches (102 mm) in all directions from the corner and all webbing shall be of approved type and mesh, producing a tensile strength of not less than 50 pounds per inch (893 kg/m) in either direction. P Installation. Lining materials shall be pitched one-fourth unit vertical in 12 units horizontal (2-percent slope) to weep holes in the subdrain by means of a smooth, solidly formed subbase, shall be properly recessed and fastened to approved backing so as not to occupy the space required for the wall covering, and shall not be nailed or perforated at any point less than 1 inch (25.4 mm) above the finished threshold. P Materials. Lead and copper linings shall be insulated from conducting substances other than the connecting drain by 15-pound (6.80 kg) asphalt felt or its equivalent. Sheet lead liners shall weigh not less than 4 pounds per square foot (19.5 kg/m 2 ). Sheet copper liners shall weigh not less than 12 ounces per square foot (3.82 kg/m 2 ). Joints in lead and copper pans or liners shall be burned or silver brazed, respectively. Joints in plastic liner materials shall be jointed per the manufacturer s recommendations. P Receptor drains. An approved flanged drain shall be installed with shower subpans or linings. The flange shall be placed flush with the subbase and be equipped with a clamping ring or other device to make a water-tight connection between the lining and the drain. The flange shall have weep holes into the drain. SECTION P2710 SHOWER WALLS P Finished. Shower walls shall be finished in accordance with Section R SECTION P2711 LAVATORIES P Approval. Lavatories shall conform to ANSI Z124.3, ASME A , ASME A , ASME A , ASME A , ASME A , CSA B45.1, CSA B45.2, CSA B45.3 or CSA B45.4. P Cultured marble lavatories. Cultured marble vanity tops with an integral lavatory shall conform to ANSI Z124.3 or CSA B45.5. P Lavatory waste outlets. Lavatories shall have waste outlets not less than 1.25 inch (32 mm) in diameter. A strainer, pop-up stopper, crossbar or other device shall be provided to restrict the clear opening of the waste outlet. P Movable lavatory systems. Moveable lavatory systems shall comply with ASME A FLORIDA BUILDING CODE RESIDENTIAL 27.3

14 PLUMBING FIXTURES SECTION P2712 WATER CLOSETS P Approval. Water closets shall conform to the water consumption requirements of Section P and shall conform to ANSI Z124.4, ASME A , CSA B45.1, CSA B45.4 or CSA B45.5. Water closets shall conform to the hydraulic performance requirements of ASME A Water closets tanks shall conform to ANSI Z124.4, ASME A , ASME A , CSA B45.1, CSA B45.4 or CSA B45.5. Water closets that have an invisible seal and unventilated space or walls that are not thoroughly washed at each discharge shall be prohibited. Water closets that permit backflow of the contents of the bowl into the flush tank shall be prohibited. P Flushing devices required. Water closets shall be provided with a flush tank, flushometer tank or flushometer valve designed and installed to supply water in sufficient quantity and flow to flush the contents of the fixture, to cleanse the fixture and refill the fixture trap in accordance with ASME A and ASME A P Water supply for flushing devices. An adequate quantity of water shall be provided to flush and clean the fixture served. The water supply to flushing devices equipped for manual flushing shall be controlled by a float valve or other automatic device designed to refill the tank after each discharge and to completely shut off the water flow to the tank when the tank is filled to operational capacity. Provision shall be made to automatically supply water to the fixture so as to refill the trap after each flushing. P Flush valves in flush tanks. Flush valve seats in tanks for flushing water closets shall be at least 1 inch (25.4 mm) above the flood-level rim of the bowl connected thereto, except an approved water closet and flush tank combination designed so that when the tank is flushed and the fixture is clogged or partially clogged, the flush valve will close tightly so that water will not spill continuously over the rim of the bowl or backflow from the bowl to the tank. P Overflows in flush tanks. Flush tanks shall be provided with overflows discharging to the water closet connected thereto and such overflow shall be of sufficient size to prevent flooding the tank at the maximum rate at which the tanks are supplied with water according to the manufacturer s design conditions. SECTION P2713 BATHTUBS P Bathtub waste outlets and overflows. Bathtubs shall have outlets and overflows at least 1.5 inches (38 mm) in diameter, and the waste outlet shall be equipped with an approved stopper. P Bathtub enclosures. Doors within a bathtub enclosure shall conform to ASME A SECTION P2714 SINKS P Sink waste outlets. Sinks shall be provided with waste outlets not less than 1.5 inches (38 mm) in diameter. A strainer, crossbar or other device shall be provided to restrict the clear opening of the waste outlet. P Moveable sink systems. Moveable sink systems shall comply with ASME A SECTION P2715 LAUNDRY TUBS P Laundry tub waste outlet. Each compartment of a laundry tub shall be provided with a waste outlet not less than 1.5 inches (38 mm) in diameter and a strainer or crossbar to restrict the clear opening of the waste outlet. SECTION P2716 FOOD WASTE GRINDER P Food waste grinder waste outlets. Food waste grinders shall be connected to a drain of not less than 1.5 inches (38 mm) in diameter. P Water supply required. Food waste grinders shall be provided with an adequate supply of water at a sufficient flow rate to ensure proper functioning of the unit. SECTION P2717 DISHWASHING MACHINES P Protection of water supply. The water supply for dishwashers shall be protected by an air gap or integral backflow preventer. P Sink and dishwasher. A sink and dishwasher are permitted to discharge through a single 1.5-inch (38 mm) trap. The P Access. All parts in a flush tank shall be accessible for discharge pipe from the dishwasher shall be increased to a minimum of 0.75 inch (19.1 mm) in diameter and shall be con- repair and replacement. nected with a wye fitting to the sink tailpiece. The dishwasher P Water closet seats. Water closets shall be equipped waste line shall rise and be securely fastened to the underside of with seats of smooth, nonabsorbent material and shall be properly sized for the water closet bowl type. the counter before connecting to the sink tailpiece. P Sink, dishwasher and food grinder. The combined P Flush tank lining. Sheet copper used for flush tank discharge from a sink, dishwasher, and waste grinder is permitted to discharge through a single 1.5 inch (38 mm) trap. The dis- linings shall have a minimum weight of 10 ounces per square foot (3.18 kg/m 2 ). charge pipe from the dishwasher shall be increased to a minimum of 0.75 inch (19.1 mm) in diameter and shall connect P Electro-hydraulic water closets. Electro-hydraulic with a wye fitting between the discharge of the food-waste water closets shall conform to ASME A grinder and the trap inlet or to the head of the food grinder. The 27.4 FLORIDA BUILDING CODE RESIDENTIAL

15 PLUMBING FIXTURES dishwasher waste line shall rise and be securely fastened to the underside of the counter before connecting to sink tail piece or food grinder. SECTION P2718 CLOTHES WASHING MACHINE P Waste connection. The discharge from a clothes washing machine shall be through an air break. Exception: Shower or tub/shower mixing valves conforming to ASSE 1016, where the flow of hot water corresponds to the markings on the device. P Individual pressure-balancing in-line valves for individual fixture fittings. Where individual pressure-balancing in-line valves for individual fixture fittings are installed, the valves shall comply with ASSE Such valves shall be installed in an accessible location and shall not be utilized alone as a substitute for the balanced pressure, thermostatic or combination shower valves required in Section P SECTION P2719 FLOOR DRAINS P Minimum size. Floor drains shall have waste outlets not less than 2 inches (51 mm) in diameter and shall be provided with a removable strainer with an open area of at least two-thirds of the cross-sectional area of the drain line to which it connects. SECTION P2720 WHIRLPOOL BATHTUBS P Access panel. A door or panel of sufficient size shall be installed to provide access to the pump for repair and/or replacement. P Piping drainage. The circulation pump shall be accessibly located above the crown weir of the trap. The pump drain line shall be properly graded to ensure minimum water retention in the volute after fixture use. The circulation piping shall be installed to be self-draining. P Leak testing. Leak testing and pump operation shall be performed in accordance with the manufacturer s installation instructions. P Manufacturer s instructions. The product shall be installed in accordance with the manufacturer s installation instructions. SECTION P2723 MACERATING TOILET SYSTEMS P General. Macerating toilet systems shall be installed in accordance with manufacturer s installation instructions. P Drain. The minimum size of the drain from the macerating toilet system shall be 0.75 inch (19.1 mm) in diameter. SECTION P2724 SPECIALTY TEMPERATURE CONTROL DEVICES AND VALVES P Temperature-actuated, flow-reduction devices for individual fixtures. Temperature-actuated, flow-reduction devices, where installed for individual fixture fittings, shall conform to ASSE Such valves shall not be used alone as a substitute for the balanced pressure, thermostatic or combination shower valves required for showers in Section P SECTION P2721 BIDET INSTALLATIONS P Water supply. The bidet shall be equipped with either an air-gap-type or vacuum-breaker-type fixture supply fitting. SECTION P2722 FIXTURE FITTING P General. Fixture supply valves and faucets shall comply with ASME A as listed in Table P Faucets and fixture fittings that supply drinking water for human ingestion shall conform to the requirements of NSF 61, Section 9. Flexible water connectors shall conform to the requirements of Section P P Hot water. Fixture fittings, faucets and diverters shall be installed and adjusted so that the flow of hot water from the fittings corresponds to the left-hand side of the fitting. FLORIDA BUILDING CODE RESIDENTIAL 27.5

16 27.6 FLORIDA BUILDING CODE RESIDENTIAL

17 CHAPTER 28 WATER HEATERS SECTION P2801 GENERAL P Required. Each dwelling shall have an approved automatic water heater or other type of domestic water-heating system sufficient to supply hot water to plumbing fixtures and appliances intended for bathing, washing or culinary purposes. Storage tanks shall be constructed of noncorrosive metal or shall be lined with noncorrosive material. P Installation. Water heaters shall be installed in accordance with this chapter and Chapters 20 and 24. P Location. Water heaters and storage tanks shall be located and connected so as to provide access for observation, maintenance, servicing and replacement. P Prohibited locations. Water heaters shall be located in accordance with Chapter 20. Exceptions: 1. Direct-vent water heaters. 2. Appliances installed in a dedicated enclosure in which all combustible air is taken directly from the outdoors, in accordance with Section M1703. Access to such enclosure shall be through a solid door, weather-stripped in accordance with the exterior door air leakage requirements of Chapter 13 of the Florida Building Code, Building and equipped with an approved self-closing device. P Required pan. Where water heaters or hot water storage tanks are installed above the ground floor space, or in attics or ceiling areas, the tank or water heater shall be installed in a galvanized steel or other metal pan of equal corrosion resistance having a minimum thickness of 24 gage, inch (0.70 mm). Electric water heaters shall be installed in a metal pan as herein required or in a high-impact plastic pan of at least inch (1.59 mm) thickness. P Pan size and drain. The pan shall be not less than 1.5 inches (38 mm) deep and shall be of sufficient size and shape to receive all dripping and condensate from the tank or water heater. The pan shall be drained by an indirect waste pipe having a minimum diameter of 3 / 4 inch (19 mm) or the outlet diameter of the relief valve, whichever is larger. P Pan drain termination. The pan drain shall extend full-size and terminate over a suitably located indirect waste receptor or shall extend to the exterior of the building and terminate not less than 6 inches (152 mm) and not more than 24 inches (610 mm) above the adjacent ground surface. P Water heaters installed in garages. Water heaters shall be installed in accordance with the manufacturer=s installation instructions which shall be available on the job site at the time of inspection. SECTION P2802 WATER HEATERS USED FOR SPACE HEATING P Protection of potable water. Piping and components connected to a water heater for space heating applications shall be suitable for use with potable water in accordance with Chapter 29. Water heaters that will be used to supply potable water shall not be connected to a heating system or components previously used with nonpotable water heating appliances. Chemicals for boiler treatment shall not be introduced into the water heater. P Temperature control. Where a combination water heater-space heating system requires water for space heating at temperatures exceeding 140 F (60 C), a master thermostatic mixing valve complying with ASSE 1017 shall be installed to temper the water to a temperature of 140 F (60 C) or less for domestic uses. SECTION P2803 RELIEF VALVES P Relief valves required. Appliances and equipment used for heating water or storing hot water shall be protected by: 1. A separate pressure-relief valve and a separate temperature-relief valve; or 2. A combination pressure- and temperature-relief valve. P Rating. Relief valves shall have a minimum rated capacity for the equipment served and shall conform to ANSI Z P Pressure relief valves. Pressure-relief valves shall have a relief rating adequate to meet the pressure conditions for the appliances or equipment protected. In tanks, they shall be installed directly into a tank tapping or in a water line close to the tank. They shall be set to open at least 25 psi (172 kpa) above the system pressure but not over 150 psi (1034 kpa). The relief-valve setting shall not exceed the tanks rated working pressure. P Temperature relief valves. Temperature-relief valves shall have a relief rating compatible with the temperature conditions of the appliances or equipment protected. The valves shall be installed such that the temperature-sensing element monitors the water within the top 6 inches (152 mm) of the tank. The valve shall be set to open at a maximum temperature of 210 F (99 C). P Combination pressure/temperature relief valves. Combination pressure/temperature-relief valves shall comply with all the requirements of separate pressure- and temperature-relief valves. FLORIDA BUILDING CODE RESIDENTIAL 28.1

18 WATER HEATERS P Installation of relief valves. A check or shutoff valve shall not be installed in the following locations: 1. Between a relief valve and the termination point of the relief valve discharge pipe; 2. Between a relief valve and a tank; or 3. Between a relief valve and heating appliances or equipment. P Requirements of discharge pipe. The outlet of a pressure relief valve, temperature relief valve or combination thereof, shall not be directly connected to the drainage system. The discharge from the relief valve shall be piped full size separately to the floor, to the outside of the building or to an indirect waste receptor located inside the building. In areas subject to freezing, the relief valve shall discharge through an air gap into an indirect waste receptor located within a heated space, or by other approved means. The discharge shall be installed in a manner that does not cause personal injury or property damage and that is readily observable by the building occupants. The discharge from a relief valve shall not be trapped. The diameter of the discharge piping shall not be less than the diameter of the relief valve outlet. The discharge pipe shall be installed so as to drain by gravity flow and shall terminate atmospherically not more than 6 inches (152 mm) above the floor. The outlet end of the discharge pipe shall not have a valve installed. P Relief valve drains. Relief valve drains shall comply with Section P or ASME A FLORIDA BUILDING CODE RESIDENTIAL

19 CHAPTER 29 WATER SUPPLY AND DISTRIBUTION SECTION P2901 GENERAL P Potable water required. Dwelling units shall be provided with a supply of potable water in the amounts and pressures specified in this chapter. In a building where both a potable and nonpotable water-distribution system are installed, each system shall be identified by color marking, metal tag or other appropriate method. Any nonpotable outlet that could inadvertently be used for drinking or domestic purposes shall be posted. SECTION P2902 PROTECTION OF POTABLE WATER SUPPLY P General. A potable water supply system shall be designed and installed in such a manner as to prevent contamination from nonpotable liquids, solids or gases being introduced into the potable water supply. Connections shall not be made to a potable water supply in a manner that could contaminate the water supply or provide a cross-connection between the supply and source of contamination unless an approved backflowprevention device is provided. Cross-connections between an individual water supply and a potable public water supply shall be prohibited. P Backflow protection. A means of protection against backflow shall be provided in accordance with Sections P through P Backflow prevention applications shall conform to Table P2902.2, except as specifically stated in Sections P through P P Air gaps. Air gaps shall comply with ASME A and air gap fittings shall comply with ASME A The minimum air gap shall be measured vertically from the lowest end of a water supply outlet to the flood level rim of the fixture or receptor into which such potable water outlets discharge. The minimum required air gap shall be twice the diameter of the effective opening of the DEVICE TABLE P APPLICATION FOR BACKFLOW PREVENTERS DEGREE OF APPLICABLE HAZARD a APPLICATION b STANDARDS Air gap High or low hazard Backsiphonage or backpressure ASME A Air gap fittings for use with plumbing fixtures, appliances and appurtenances High or low hazard Backsiphonage or backpressure ASME A Antisiphon-type fill valves for gravity water closet flush tanks Backflow preventer with intermediate atmospheric vents Double check backflow prevention assembly and double check fire protection backflow prevention assembly Double check detector fire protection backflow prevention assemblies Dual-check-valve-type backflow preventer Hose connection backflow preventer Hose-connection vacuum breaker High hazard Low hazard Low hazard Low hazard Low hazard High or low hazard Backsiphonage only Backpressure or backsiphonage Sizes 1 / 4 3 / 4 Backpressure or backsiphonage Sizes 3 / 8 16 Backpressure or backsiphonage (Fire sprinkler systems) Sizes 2 16 Backpressure or backsiphonage Sizes 1 / 4 1 Low head backpressure, rated working pressure backpressure or backsiphonage Sizes 1 / 2 1 High or low hazard Low head backpressure or backsiphonage Sizes 1 / 2, 3 / 4, 1 ASSE 1002 CSA CAN/CSA B125 ASSE 1012 CSA CAN/CSA-B64.3 ASSE 1015 AWWA C510 ASSE 1048 ASSE 1024 ASSE 1052 ASSE 1011 CSA CAN/CSA-B64.2 Laboratory faucet backflow preventer High or low hazard Low head backpressure and backsiphonage ASSE 1035, CSA B64.7 Pipe-applied atmospheric-type vacuum breaker High or low hazard Backsiphonage only Sizes 1 / 4 4 ASSE 1001 CSA CAN/CSA-B ASSE 1020 Pressure vacuum breaker assembly High or low hazard Backsiphonage only Sizes 1 / 2 2 FLORIDA BUILDING CODE RESIDENTIAL 29.1

20 WATER SUPPLY AND DISTRIBUTION TABLE P APPLICATION FOR BACKFLOW PREVENTERS DEVICE DEGREE OF HAZARD a APPLICATION b APPLICABLE STANDARDS Air gap High or low hazard Backsiphonage or backpressure ASME A Air gap fittings for use with plumbing fixtures, appliances and appurtenances High or low hazard Backsiphonage or backpressure ASME A Antisiphon-type fill valves for gravity water closet flush tanks Backflow preventer with intermediate atmospheric vents Double check backflow prevention assembly and double check fire protection backflow prevention assembly Double check detector fire protection backflow prevention assemblies Dual-check-valve-type backflow preventer Hose connection backflow preventer Hose connection vacuum breaker High hazard Low hazard Low hazard Low hazard Low hazard High or low hazard High or low hazard Backsiphonage only Backpressure or backsiphonage Sizes 1 / 4-3 / 4 Backpressure or backsiphonage Sizes 3 / 8-16 Backpressure or backsiphonage (Fire sprinkler systems) Sizes 2-16 Backpressure or backsiphonage Sizes 1 / 4-1 Low head backpressure, rated working pressure backpressure or backsiphonage Sizes 1 / 2 1 Low head backpressure or backsiphonage Sizes 1 / 2, 3 / 4, 1 Laboratory faucet backflow preventer High or low hazard Low head backpressure and backsiphonage Pipe applied atmospheric type vacuum breaker Pressure vacuum breaker assembly Reduced pressure detector fire protection backflow prevention assemblies Reduced pressure principle backflow preventer and reduced pressure principle fire protection backflow preventer Spillproof vacuum breaker Vacuum breaker wall hydrants, frost-resistant, automatic draining type High or low hazard High or low hazard High or low hazard High or low hazard High or low hazard High or low hazard Backsiphonage only Sizes 1 / 4 4 Backsiphonage only Sizes 1 / 2 2 Backsiphonage or backpressure (Fire sprinkler systems) Backpressure or backsiphonage Sizes 3 / 8-16 Backsiphonage only Sizes 1 / 4-2 Low head backpressure or backsiphonage Sizes 3 / 4, 1 ASSE 1002 CSA CAN/CSA B125 ASSE 1012 CSA CAN/CSA-B64.3 ASSE 1015 AWWA C510 ASSE 1048 ASSE 1024 ASSE 1052 ASSE 1011 CSA CAN/CSA B64.2 ASSE 1035 CSA B64.7 ASSE 1001 CSA CAN/CSA B ASSE 1020 ASSE 1047 ASSE 1013 AWWA C511 CSA CAN/CSA B64.4 ASSE 1056 ASSE 1019 CSA CAN/CSA-B For SI: 1 inch = 25.4 mm. a. Low hazard See Pollution (Section 202). High hazard See Contamination (Section 202). b. See Backpressure (Section 202). See Backpressure, Low Head (Section 202). See Backsiphonage (Section 202) FLORIDA BUILDING CODE RESIDENTIAL

21 WATER SUPPLY AND DISTRIBUTION TABLE P MINIMUM AIR GAPS MINIMUM AIR GAP FIXTURE Effective openings greater than 1 inch Lavatories and other fixtures with effective opening not greater than 1 / 2 inch in diameter Away from a wall a (inches) Two times the diameter of the effective opening Close to a wall (inches) Three times the diameter of the effective opening Over-rim bath fillers and other fixtures with effective openings not greater than1 inch in diameter Sink, laundry trays, gooseneck back faucets and other fixtures with effective openings not greater than 3 / 4 inch in diameter For SI: 1 inch = 25.4 mm. a. Applicable where walls or obstructions are spaced from the nearest inside edge of the spout opening a distance greater than three times the diameter of the effective opening for a single wall, or a distance greater than four times the diameter of the effective opening for two intersecting walls. outlet, but in no case less than the values specified in Table P An air gap is required at the discharge point of a relief valve or piping. Air gap devices shall be incorporated in dishwashing and clothes washing appliances. P Atmospheric-type vacuum breakers. Pipe-applied atmospheric-type vacuum breakers shall conform to ASSE 1001 or CSA CAN/CSA B Hose connection vacuum breakers shall conform to ASSE 1011, ASSE 1019, ASSE 1035, ASSE 1052, CSA CAN/CSA B64.2, CSA CAN/CSA B64.2.2, CSA B64.7. These devices shall operate under normal atmospheric pressure when the critical level is installed at the required height. P Backflow preventer with intermediate atmospheric vent. Backflow preventers with intermediate atmospheric vents shall conform to ASSE 1012 or CSA CAN/CSA B64.3. These devices shall be permitted to be installed where subject to continuous pressure conditions. The relief opening shall discharge by air gap and shall be prevented from being submerged. P Pressure-type vacuum breakers. Pressure-type vacuum breakers shall conform to ASSE 1020 and spill-proof vacuum breakers shall comply with ASSE These devices are designed for installation under continuous pressure conditions when the critical level is installed at the required height. Pressure-type vacuum breakers shall not be installed in locations where spillage could cause damage to the structure. P Reduced pressure principle backflow preventer. Reduced pressure principle backflow preventers shall conform to ASSE 1013, AWWA C511 or CSA CAN/CSA B64.4. Reduced pressure detector assembly backflow preventers shall conform to ASSE These devices are permitted to be installed where subject to continuous pressure conditions. The relief opening shall discharge by air gap and shall be prevented from being submerged. P Double check valve assemblies. Double check valve assemblies shall conform to ASSE 1015 or AWWA C510. Double-detector check valve assemblies shall conform to ASSE These devices shall be capable of operation under continuous pressure. P Protection of potable water outlets. All potable water openings and outlets shall be protected by an air gap, reduced pressure principle backflow preventer with atmospheric vent, atmospheric-type vacuum breaker, pressure-type vacuum breaker or hose connection backflow preventer. P Fill valves. Flush tanks shall be equipped with an antisiphon fill valve conforming to ASSE 1002 or CSA B125. The fill valve backflow preventer shall be located at least 1 inch (25.4 mm) above the full opening of the overflow pipe. P Deck-mounted and integral vacuum breakers. Approved deck-mounted vacuum breakers and faucets with integral atmospheric or spill-proof vacuum breakers shall be installed in accordance with the manufacturer s installation instructions and the requirements for labeling with the critical level not less than 1 inch (25.4 mm) above the flood level rim. P Hose connection. Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by an atmospheric-type or pressure-type vacuum breaker or a permanently attached hose connection vacuum breaker. Exceptions: 1. This section shall not apply to water heater and boiler drain valves that are provided with hose connection threads and that are intended only for tank or vessel draining. 2. This section shall not apply to water supply valves intended for connection of clothes washing machines where backflow prevention is otherwise provided or is integral with the machine. P Protection of potable water connections. All connections to the potable water shall conform to Sections P through P P Connections to boilers. The potable supply to the boiler shall be equipped with a backflow preventer with FLORIDA BUILDING CODE RESIDENTIAL 29.3

22 WATER SUPPLY AND DISTRIBUTION an intermediate atmospheric vent complying with ASSE 1012 or CSA CAN/CSA B64.3. Where conditioning chemicals are introduced into the system, the potable water connection shall be protected by an air gap or a reduced pressure principle backflow preventer complying with ASSE 1013, CSA CAN/CSA B64.3 or AWWA C511. P Heat exchangers. Heat exchangers utilizing an essentially toxic transfer fluid shall be separated from the potable water by double-wall construction. An air gap open to the atmosphere shall be provided between the two walls. Heat exchangers utilizing an essentially nontoxic transfer fluid shall be permitted to be of single-wall construction. P Lawn irrigation systems. The potable water supply to lawn irrigation systems shall be protected against backflow by an atmospheric-type vacuum breaker, a pressure-type vacuum breaker or a reduced pressure principle backflow preventer. A valve shall not be installed downstream from an atmospheric vacuum breaker. Where chemicals are introduced into the system, the potable water supply shall be protected against backflow by a reduced pressure principle backflow preventer. P Connections to automatic fire sprinkler systems. The potable water supply to automatic fire sprinkler systems shall be protected against backflow by a double check-valve assembly or a reduced pressure principle backflow preventer. Exception: Where systems are installed as a portion of the water distribution system in accordance with the requirements of this code and are not provided with a fire department connection, isolation of the water supply system shall not be required. P Additives or nonpotable source. Where systems contain chemical additives or antifreeze, or where systems are connected to a nonpotable secondary water supply, the potable water supply shall be protected against backflow by a reduced pressure principle backflow preventer. Where chemical additives or antifreeze is added to only a portion of an automatic fire sprinkler or standpipe system, the reduced pressure principle backflow preventer shall be permitted to be located so as to isolate that portion of the system. P Solar systems. The potable water supply to a solar system shall be equipped with a backflow preventer with intermediate atmospheric vent complying with ASSE 1012 or a reduced pressure principle backflow preventer complying with ASSE Where chemicals are utilized, the potable water supply shall be protected by a reduced pressure principle backflow preventer. P Access. All backflow prevention devices shall be accessible for inspection and servicing. SECTION P2903 WATER-SUPPLY SYSTEM P Water supply system design criteria. The water service and water distribution systems shall be designed and pipe sizes shall be selected such that under conditions of peak demand, the capacities at the point of outlet discharge shall not be less than shown in Table P Table P shall be permitted to be used to size the water distribution system. TABLE P REQUIRED CAPACITIES AT POINT OF OUTLET DISCHARGE FIXTURE AT POINT OF OUTLET FLOW RATE (gpm) PLUMBING FIXTURE OR FIXTURE FITTING Lavatory faucet Shower head a Exception: Where all solar system piping is a part of the Sink faucet potable water distribution system, in accordance with the Water closet requirements of the Florida Building Code, Plumbing, For SI: 1 gallon per minute = L/m, and all components of the piping system are listed for potable water use, cross-connection protection measure 1 pound per square inch = kpa. shall not be required. FLOW PRESSURE (psi) Bathtub 4 8 Bidet 2 4 Dishwasher Laundry tub 4 8 Lavatory 2 8 Shower 3 8 Shower, temperature controlled 3 20 Sillcock, hose bibb 5 8 Sink Water closet, flushometer tank Water closet, tank, close coupled 3 8 Water closet, tank, one-piece 6 20 For SI: 1 gallon per minute = L/m, 1 pound per square inch = kpa. P Maximum flow and water consumption. The maximum water consumption flow rates and quantities for all plumbing fixtures and fixture fittings shall be in accordance with Table P TABLE P2903.2a MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGS b PLUMBING FIXTURE OR FIXTURE FITTING 2.2 gpm at 60 psi 2.5 gpm at 80 psi 2.2 gpm at 60 psi 1.6 gallons per flushing cycle a. A handheld shower spray is also a shower head. b. Consumption tolerances shall be determined from referenced standards FLORIDA BUILDING CODE RESIDENTIAL

23 WATER SUPPLY AND DISTRIBUTION TABLE P2903.2b MINIMUM WATER SERVICE SIZE a NO. OF FIXTURE UNITS RECOMMENDED METER SIZE FLUSH TANK WC b DIAMETER OF WATER PIPE c (inches) d APPROX. PRESSURE LOSS METER PIPE (psi) e NO. OF FIXTURE UNITS FLUSH VALVE WC b 18 3 / 4 5 / / / / / / / / / / / a. Table is applicable for both copper and plastic water piping. b. See Table for fixture unit values. c. Minimum water service shall be 3 / 4 to control valve. d. All secondary submeters and backflow assemblies shall be at least the same size as the line in which they are installed. e. Table based on minimum water main pressure of 50 psi P Minimum pressure. Minimum static pressure (as determined by the local water authority) at the building entrance for either public or private water service shall be 40 psi (276 kpa). P Maximum pressure. Maximum static pressure shall be 80 psi (551 kpa). When main pressure exceeds 80 psi (551 kpa), an approved pressure-reducing valve conforming to ASSE 1003 shall be installed on the domestic water branch main or riser at the connection to the water-service pipe. and gallon per minute (gpm) flow rates [see Table (1)]. For fixtures not listed, choose a w.s.f.u. value of a fixture with similar flow characteristics. P Size of water-service mains, branch mains andrisers. The minimum size water service pipe shall be 3 / 4 inch (19.1 mm). The size of water service mains, branch mains and risers shall be determined according to water supply demand [gpm (L/m)], available water pressure [psi (kpa)] and friction loss due to the water meter and developed length of pipe [feet (m)], including equivalent length of fittings. The size of each water distribution system shall be determined according to the procedure outlined in this section or by other design methods conforming to acceptable engineering practice and approved by the administrative authority: P Thermal expansion. In addition to the required pressure relief valve, an approved device for thermal expansion control shall be installed on any water supply system utilizing storage water heating equipment whenever the building supply pressure exceeds the pressure-reducing valve setting or when any device, such as a pressure-reducing valve, backflow preventer or check valve, is installed that prevents pressure relief through the building supply. The thermal expansion control device shall be sized in accordance with the manufacturer s installation instructions. P Water hammer. The flow velocity of the water distribution system shall be controlled to reduce the possibility of water hammer. A water-hammer arrestor shall be installed where quick-closing valves are utilized. Water-hammer arrestors shall be installed in accordance with manufacturers specifications. Water-hammer arrestors shall conform to ASSE P Determining water-supply fixture units. Supply loads in the building water-distribution system shall be determined by total load on the pipe being sized, in terms of water-supply fixture units (w.s.f.u.), as shown in Table P2903.6, 1. Obtain the minimum daily static service pressure [psi (kpa)] available (as determined by the local water authority) at the water meter or other source of supply at the installation location. Adjust this minimum daily static pressure [psi (kpa)] for the following conditions: 1.1. Determine the difference in elevation between the source of supply and the highest water supply outlet. Where the highest water supply outlet is located above the source of supply, deduct 0.5 psi (3.4 kpa) for each foot (0.3 m) of difference in elevation. Where the highest water supply outlet is located below the source of supply, add 0.5 psi (3.4 kpa) for each foot (0.3 m) of difference in elevation Where a water pressure reducing valve is installed in the water distribution system, the mini- FLORIDA BUILDING CODE RESIDENTIAL 29.5

24 WATER SUPPLY AND DISTRIBUTION mum daily static water pressure available is 80 percent of the minimum daily static water pressure at the source of supply or the set pressure downstream of the pressure reducing valve, whichever is smaller Deduct all pressure losses due to special equipment such as a backflow preventer, water filter and water softener. Pressure loss data for each piece of equipment shall be obtained through the manufacturer of such devices Deduct the pressure in excess of 8 psi (55 kpa) due to installation of the special plumbing fixture, such as temperature controlled shower and flushometer tank water closet. Using the resulting minimum available pressure, find the corresponding pressure range in Table P The maximum developed length for water piping is the actual length of pipe between the source of supply and the most remote fixture, including either hot (through the water heater) or cold water branches multiplied by a factor of 1.2 to compensate for pressure loss through fittings. Select the appropriate column in Table P equal to or greater than the calculated maximum developed length. 3. To determine the size of water service pipe, meter and main distribution pipe to the building using the appropriate table, follow down the selected maximum developed length column to a fixture unit equal to, or greater than the total installation demand calculated by using the combined water supply fixture unit column of Table P Read the water service pipe and meter sizes in the first left-hand column and the main distribution pipe to the building in the second left-hand column on the same row. 4. To determine the size of each water distribution pipe, start at the most remote outlet on each branch (either hot or cold branch) and, working back toward the main distribution pipe to the building, add up the water supply fixture unit demand passing through each segment of the distribution system using the related hot or cold column of Table P Knowing demand, the size of each segment shall be read from the second left-hand column of the same table and a maximum developed length column selected in Steps 1 and 2, under the same or next smaller size meter row. In no case does the size of any branch or main need to be larger that the size of the main distribution pipe to the building established in Step 3. TABLE P WATER-SUPPLY FIXTURE-UNIT VALUES FOR VARIOUS PLUMBING FIXTURES AND FIXTURE GROUPS TYPE OF FIXTURES OR GROUP OF FIXTURES WATER-SUPPLY FIXTURE-UNIT VALUE (w.s.f.u.) Hot Cold Combined Bathtub (with/without overhead shower head) Clothes washer Dishwasher Full-bath group with bathtub (with/without shower head) or shower stall Half-bath group (water closet and lavatory) Hose bibb (sillcock) a Kitchen group (dishwasher and sink with/without garbage grinder) Kitchen sink Laundry group (clothes washer standpipe and laundry tub) Laundry tub Lavatory Shower stall Water closet (tank type) For SI: 1 gallon per minute = L/m. a. The fixture unit value 2.5 assumes a flow demand of 2.5 gpm, such as for an individual lawn sprinkler device. If a hose bibb/sill cock will be required to furnish a greater flow rate, the equivalent fixture-unit value may be obtained from Table P or Table P FLORIDA BUILDING CODE RESIDENTIAL

25 WATER SUPPLY AND DISTRIBUTION For SI: TABLE P2903.6(1) CONVERSIONS FROM WATER SUPPLY FIXTURE UNIT TO GALLON PER MINUTE FLOW RATES SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH TANKS SUPPLY SYSTEM PREDOMINANTLY FOR FLUSH VALVES Load Demand Load Demand (Water supply fixture units) (Gallons per minute) (Cubic feet per minute) (Water supply fixture units) (Gallons per minute) (Cubic feet per minute) gallon per minute = L/m, 1 cubic foot per minute = L/s. TABLE P MINIMUM SIZE OF WATER METERS, MAINS AND DISTRIBUTION PIPING BASED ON WATER SUPPLY FIXTURE UNIT VALUES Pressure Range 30 to 39 psi METER AND DISTRIBUTION MAXIMUM DEVELOPMENT LENGTH (feet) SERVICE PIPE PIPE (inches) (inches) / 1 4 a / / 3 4 / / / / FLORIDA BUILDING CODE RESIDENTIAL 29.7

26 WATER SUPPLY AND DISTRIBUTION Pressure Range 40 to 49 psi METER AND SERVICE PIPE (inches) DISTRIBUTION PIPE (inches) TABLE P continued MINIMUM SIZE OF WATER METERS, MAINS AND DISTRIBUTION PIPING BASED ON WATER SUPPLY FIXTURE UNIT VALUES MAXIMUM DEVELOPMENT LENGTH (feet) / 4 1 / 2 a / 4 3 / / / / / / / / / / Pressure Range 50 to 60 psi METER AND SERVICE PIPE (inches) DISTRIBUTION PIPE (inches) MAXIMUM DEVELOPMENT LENGTH (feet) / 4 1 / 2 a / 4 3 / / / / / / / / / / Pressure Range greater than 60 psi METER AND SERVICE PIPE (inches) DISTRIBUTION PIPE (inches) MAXIMUM DEVELOPMENT LENGTH (feet) / 4 1 / 2 a / 3 4 / / / / / / / / / / For SI: 1 inch = 25.4 mm, 1 foot = mm, 1 pound per square inch = kpa. a. Minimum size for building supply is 3 / 4 -inch pipe FLORIDA BUILDING CODE RESIDENTIAL

27 WATER SUPPLY AND DISTRIBUTION P Parallel water-distribution system manifolds. Hot and cold parallel water-distribution system manifolds with individual distribution lines to each fixture or fixture fitting shall be sized and installed in accordance with Sections P through P P Sizing of manifolds. Manifolds shall be sized in accordance with Table P Total gallons per minute is the demand for all outlets. P Minimum size. The minimum size of individual distribution lines shall be 3 / 8 inch (9.5 mm). Certain fixtures such as one-piece water closets and whirlpool bathtubs shall require a larger size where specified by the manufacturer. If a water heater is fed from the end of a cold water manifold, the manifold shall be one size larger than the water heater feed. P Maximum length. The maximum length of individual distribution lines shall be 60 feet ( mm) nominal. P Orientation. Manifolds shall be permitted to be installed in a horizontal or vertical position. P Support and protection. Plastic piping bundles shall be secured in accordance with the manufacturer s installation instructions and supported in accordance with Section P2605. Bundles that have a change in direction equal to or greater than 45 degrees (0.79 rad) shall be protected from chaffing at the point of contact with framing members by sleeving or wrapping. P Valving. Fixture valves, when installed, shall be located either at the fixture or at the manifold. If valves are installed at the manifold, they shall be labeled indicating the fixture served. P Hose bibb bleed. A readily accessible air bleed shall be installed in hose bibb supplies at the manifold or at the hose bibb exit point. P Valves. Valves shall be installed in accordance with Sections P through P P Service valve. Each dwelling unit shall be provided with an accessible main shutoff valve near the entrance of the water service. The valve shall be of a full-open type having nominal restriction to flow, with provision for drainage such as a bleed orifice or installation of a separate drain valve. Additionally, the water service shall be valved at the curb or property line in accordance with local requirements. P Water heater valve. A readily accessible full-open valve shall be installed in the cold-water supply pipe to each water heater at or near the water heater. P Valve requirements. Valves serving individual fixtures, appliances, risers and branches shall be provided with access. An individual shutoff valve shall be required on the fixture supply pipe to each plumbing fixture other than bathtubs and showers. P Hose bibb. Hose bibbs subject to freezing, including the frost-proof type, shall be equipped with an accessible stop-and-waste-type valve inside the building so that they may be controlled and/or drained during cold periods. Exception: Frost-proof hose bibbs installed such that the stem extends through the building insulation into an open heated or semi-conditioned space need not be separately valved. (See Figure P ) SECTION P2904 MATERIALS, JOINTS AND CONNECTIONS P Soil and groundwater. The installation of water service pipe, water distribution pipe, fittings, valves, appurtenances and gaskets shall be prohibited in soil and groundwater that is contaminated with solvents, fuels, organic compounds or other detrimental materials that cause permeation, corrosion, degradation or structural failure of the water service or water distribution piping material. P Investigation required. Where detrimental conditions are suspected by or brought to the attention of the building official, a chemical analysis of the soil and groundwater conditions shall be required to ascertain the acceptability of the water service material for the specific installation. TABLE P MANIFOLD SIZING PLASTIC METALLIC Nominal Size ID Maximum a Nominal Size ID Maximum a (inches) gpm (inches) gpm 3 / / / / / / 2 44 For SI: 1 inch = 25.4 mm, 1 gallon per minute = L/m, 1 foot per second = m/s. NOTE: See Table P for w.s.f.u and Table (1) for gallon-per-minute (gpm) flow rates. a. Based on velocity limitation: plastic 12 fps; metal 8 fps. FLORIDA BUILDING CODE RESIDENTIAL 29.9

28 WATER SUPPLY AND DISTRIBUTION FIGURE P TYPICAL FROST-PROOF HOSE BIBB INSTALLATION NOT REQUIRING SEPARATE VALUE P Detrimental condition. When a detrimental condition exists, approved alternate materials or alternate routing shall be required. P Lead content. Pipe and fittings utilized in the water-supply system shall have a maximum of 8 percent lead. P Polyethylene plastic piping installation. Polyethylene pipe shall be cut square, using a cutter designed for plastic pipe. Except when joined by heat fusion, pipe ends shall be chamfered to remove sharp edges. Pipe that has been kinked shall not be installed. For bends, the installed radius of pipe curvature shall be greater than 30 pipe diameters or the coil radius when bending with the coil. Coiled pipe shall not be bent beyond straight. Bends shall not be permitted within ten pipe diameters of any fitting or valve. Stiffener inserts used with compression-type fittings shall not extend beyond the clamp or nut of the fitting. Flared joints shall be permitted where recommended by the manufacturer and made by the use of a tool designed for that operation. P Water service pipe. Water service pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table P Water service pipe or tubing, installed underground and outside of the structure, shall have a minimum working pressure rating of 160 psi at 73 F (1100 kpa at 23 C). P Water service installation. Trenching, pipe installation and backfilling shall be in accordance with Section P2604. Water-service pipe is permitted to be located in the same trench with a building sewer provided such sewer is constructed of materials listed for underground use within a building in Section P If the building sewer is not constructed of materials listed in Section P3002.1, the water-service pipe shall be separated from the building sewer by a minimum of 5 feet (1524 mm), measured horizontally, of undisturbed or compacted earth or placed on a solid ledge at least 12 inches (305 mm) above and to one side of the highest point in the sewer line. Exception: The required separation distance shall not apply where a water service pipe crosses a sewer pipe, provided the water service pipe is sleeved to at least 5 feet (1524 mm), horizontally from the sewer pipe centerline, on both sides of such crossing with pipe materials listed in Tables P , P or P P Water-distribution pipe. Water-distribution piping within dwelling units shall conform to NSF 61 and shall conform to one of the standards listed in Table P All hot-water-distribution pipe and tubing shall have a minimum pressure rating of 100 psi at 180 F (689 kpa at 82 C) FLORIDA BUILDING CODE RESIDENTIAL

29 WATER SUPPLY AND DISTRIBUTION MATERIAL TABLE P WATER SERVICE PIPE STANDARD Acrylonitrile butadiene styrene (ABS) plastic pipe ASTM D 1527; ASTM D 2282 Asbestos-cement pipe ASTM C 296 Brass pipe ASTM B 43 Chlorinated polyvinyl chloride (CPVC) plastic pipe ASTM D 2846; ASTM F 441; ASTM F 442; CSA B137.6 Copper or copper-alloy pipe ASTM B 42; ASTM B 302 Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) ASTM B 75; ASTM B 88; ASTM B 251; ASTM B 447 Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe ASTM F 1281; CSA CAN/CSA B Cross-linked polyethylene (PEX) plastic tubing ASTM F 876; ASTM F 877; CSA B137.5 Ductile iron water pipe AWWA C151; AWWA C115 Galvanized steel pipe ASTM A 53 Polybutylene (PB) plastic pipe and tubing ASTM D 2662; ASTM D 2666; ASTM D 3309; CSA B137.8M Polyethylene/aluminum/polyethylene (PE-AL-PE) pipe ASTM F 1282; CSA CAN/CSA-B137.9M Polyethylene (PE) plastic pipe ASTM D 2239; CSA-B137.1 Polyethylene (PE) plastic tubing ASTM D 2737; CSA B137.1 Polyvinyl chloride (PVC) plastic pipe ASTM D 1785; ASTM D 2241; ASTM D 2672; CSA B137.3 Stainless steel (Type 304/304L) pipe ASTM A312; ASTM A778 Stainless steel (Type 316/316L) pipe ASTM A312; ASTM A778 MATERIAL TABLE P WATER DISTRIBUTION PIPE STANDARD Brass pipe ASTM B 43 Chlorinated polyvinyl chloride (CPVC) plastic pipe and tubing ASTM D 2846; ASTM F 441; ASTM F 442; CSA B137.6 Copper or copper-alloy pipe ASTM B 42; ASTM B 302 Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) ASTM B 75; ASTM B 88; ASTM B 251; ASTM B 447 Cross-linked polyethylene (PEX) plastic tubing ASTM F 877; CSA B137.5 Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe ASTM F 1281; CSACAN/CSA-B Galvanized steel pipe ASTM A 53 Polybutylene (PB) plastic pipe and tubing ASTM D 3309; CSA CAN3-B137.8 Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pipe ASTM F 1282 Stainless steel (Type 304/304L) pipe ASTM A312; ASTM A778 Stainless steel (Type 316/316L) pipe ASTM A312; ASTM A778 FLORIDA BUILDING CODE RESIDENTIAL 29.11

30 WATER SUPPLY AND DISTRIBUTION P Under concrete slabs. Inaccessible water distribution piping under slabs shall be copper water tube minimum Type M, brass, ductile iron pressure pipe, cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pressure pipe, chlorinated polyvinyl chloride (CPVC) or polybutylene (PB) or cross-linked polyethylene (PEX) plastic pipe or tubing all to be installed with approved fittings or bends. The minimum pressure rating for plastic pipe or tubing installed under slabs shall be 100 psi at 180 F (689 kpa at 82 C). P Fittings. Pipe fittings shall be approved for installation with the piping material installed, and shall conform to the respective pipe standards listed in Table P Pipe fittings utilized in the water supply system shall also conform to NSF 61. P Flexible water connectors. Flexible water connectors, exposed to continuous pressure, shall conform to ASME A Access shall be provided to all flexible water connectors. P Joint and connection tightness. Joints and connections in the plumbing system shall be gas tight and water tight for the intended use or required test pressure. P Plastic pipe joints. Joints in plastic piping shall be made with approved fittings by solvent cementing, heat fusion, corrosion-resistant metal clamps with insert fittings or compression connections. Flared joints for polyethylene pipe are permitted in accordance with Section P P Solvent cementing. Solvent-cemented joints shall comply with Sections P through P P ABS plastic pipe. Solvent cement for ABS plastic pipe conforming to ASTM D 2235 shall be applied to all joint surfaces. P CPVC plastic pipe. Solvent cement for CPVC plastic pipe conforming to ASTM F 493 shall be applied to all joint surfaces. The joint shall be made while the cement is wet, and in accordance with ASTM D 2846 or ASTM F 493. Solvent-cement joints shall be permitted above or below ground. P PVC plastic pipe. A primer complying with ASTM F 656 shall be applied to all PVC solvent cemented joints. Solvent cement for PVC plastic pipe conforming to ASTM D 2564 shall be applied to all joint surfaces. P Cross-linked polyethylene plastic (PEX). Joints between cross-linked polyethylene plastic tubing or fittings shall comply with Section P or Section P P Flared joints. Flared pipe ends shall be made by a tool designed for that operation. P Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer s instructions. Fittings for cross-linked polyethylene (PEX) plastic tubing as described in ASTM F 1807, ASTM F 1960 and ASTM F 2080 shall be installed in accordance with the manufacturer s instructions. P Stainless steel. Joints between stainless steel pipe and fittings shall comply with Sections P and P P Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer s instructions. P Welded joints. All joint surfaces shall be cleaned. The joint shall be welded autogenously or with an approved filler metal in accordance with ASTM A312. TABLE P PIPE FITTINGS Acrylonitrile butadiene styrene (ABS) plastic ASTM D 2468 Brass ASTM F1974 Cast-iron ASME B16.4; ASME B16.12 Chlorinated polyvinyl chloride (CPVC) plastic ASTM F 437; ASTM F 438; ASTM F 439 ASME B16.15; ASME B16.18; ASME B16.22; Copper or copper alloy ASME B16.23; ASME B16.26; ASME B16.29 Fittings for cross-linked polyethylene (PEX) plastic tubing ASTM F 1807; ASTM F 1960; ASTM F 2080 Gray iron and ductile iron AWWA C110; AWWA C153 Malleable iron ASME B16.3 Polyethylene (PE) plastic ASTM D 2609 Polyvinyl chloride (PVC) plastic ASTM D 2464; ASTM D 2466; ASTM D 2467; CSA B137.2 Stainless steel (Type 304/304L) pipe ASTM A312; ASTM A778 Stainless steel (Type 316/316L) pipe ASTM A312; ASTM A778 Steel ASME B16.9; ASME B16.11; ASME B FLORIDA BUILDING CODE RESIDENTIAL

31 WATER SUPPLY AND DISTRIBUTION P Threaded pipe joints. Threaded joints shall conform to American National Taper Pipe Thread specifications. Pipe ends shall be deburred and chips removed. Pipe joint compound shall be used only on male threads. P Soldered joints. Soldered joints in tubing shall be made with fittings approved for water piping and shall conform to ASTM B 828. Surfaces to be soldered shall be cleaned bright. The joints shall be properly fluxed and made with approved solder. Solders and fluxes used in potable water-supply systems shall have a maximum of 0.2 percent lead. Fluxes shall conform to ASTM B 813. P Flared joints. Flared joints in water tubing shall be made with approved fittings. The tubing shall be reamed and then expanded with a flaring tool. P Underground joints. Joints in polybutylene (PB) plastic pipe or tubing underground or under a concrete floor slab shall be installed using heat fusion, in accordance with the manufacturer s installation instructions. Joints in copper pipe or tube installed in a concrete floor slab or under a concrete floor slab on grade shall be installed using wrought-copper fittings and brazed joints. P Above-ground joints. Joints within the building between copper pipe, polybutylene tubing or CPVC tubing, in any combination with compatible outside diameters, are permitted to be made with the use of approved push-in mechanical fittings of a pressure-lock design. P Joints between different materials. Joints between different piping materials shall be made in accordance with Sections P , P and P or with a mechanical joint of the compression or mechanical sealing type having an elastomeric seal conforming to ASTM D 1869 or ASTM F 477. Joints shall be installed in accordance with the manufacturer s instructions. SECTION P2905 CHANGES IN DIRECTION P Bends. Changes in direction in copper tubing are permitted to be made with bends having a radius of not less than four diameters of the tube, providing such bends are made by use of forming equipment that does not deform or create loss in cross-sectional area of the tube. SECTION P2906 SUPPORT P General. Pipe and tubing support shall conform to Section P2605. SECTION P2907 DRINKING WATER TREATMENT UNITS P Design. Drinking water treatment units shall meet the requirements of either NSF 42, NSF 44 or NSF 53. P Reverse osmosis drinking water treatment units. Point-of-use reverse osmosis drinking water treatment units, designed for residential use, shall meet requirements of NSF 58. Waste or discharge from reverse osmosis drinking water treatment units shall enter the drainage system through an air gap or an air gap device that meets the requirements of NSF 58. P Connection tubing. The tubing to and from drinking water treatment units shall be of a size and material as recommended by the manufacturer. The tubing shall comply with NSF 14, NSF 42, NSF 44, NSF 53, NSF 58 or NSF 61. P Copper or copper-alloy tubing to galvanized steel pipe. Joints between copper or copper-alloy tubing and galvanized steel pipe shall be made with a brass fitting or dielectric fitting. The copper tubing shall be joined to the fitting in an approved manner, and the fitting shall be screwed to the threaded pipe. P Plastic pipe or tubing to other piping material. Joints between different grades of plastic pipe or between plastic pipe and other piping material shall be made with an approved adapter fitting. Joints between plastic pipe and cast-iron hub pipe shall be made by a caulked joint or a mechanical compression joint. P Stainless steel. Joints between stainless steel and different piping materials shall be made with a mechanical joint of the compression or mechanical-sealing type or a dielectric fitting. P Press joints. Press-type mechanical joints in copper tubing shall be made in accordance with the manufacturer s instructions using approved tools which affix the copper fitting with integral O-ring to the tubing. FLORIDA BUILDING CODE RESIDENTIAL 29.13

32 29.14 FLORIDA BUILDING CODE RESIDENTIAL

33 CHAPTER 30 SANITARY DRAINAGE SECTION P3001 GENERAL P Scope. The provisions of this chapter shall govern the materials, design, construction and installation of sanitary drainage systems. Plumbing materials shall conform to the requirements of this chapter. The drainage waste and vent (DWV) system shall consist of all piping for conveying wastes from plumbing fixtures, appliances and appurtenances, including fixture traps; above grade drainage piping; below-grade drains within the building (building drain); below- and above-grade venting systems; and piping to the public sewer or private septic system. P Where the design temperature is less than 32 o F (0 o C), a water, soil or waste pipe shall not be installed outside of a building, in attics or crawl spaces, or be concealed in outside walls in any location subjected to freezing temperatures, unless adequate provision is made to protect them from freezing by insulation or heat or both. Water service pipe shall be installed not less than 12 inches (305 mm) deep or less than 6 inches (152 mm) below the frost line. P Floodplain Management Construction Standards. This code specifically defers to the authority granted to local government by Title 44 CFR, sections 59 and 60. This code is not intended to supplant or supercede local ordinances adopted pursuant to that authority, nor are local floodplain management ordinances to be deemed amendments to the code. SECTION P3002 MATERIALS P Piping within buildings. Drain, waste and vent (DWV) piping in buildings shall be as shown in Table P except that galvanized wrought-iron or galvanized steel pipe shall not be used underground and shall be maintained not less than 6 inches (152 mm) above ground. Allowance shall be made for the thermal expansion and contraction on plastic piping. P Building sewer. Building sewer piping shall be as shown in Table P Forced main sewer piping shall conform to one of the standards for ABS plastic pipe, cast-iron pipe, copper or copper-alloy tubing, PVC plastic pipe, or pressure rated pipe listed in Table P P Fittings. Fittings shall be approved and compatible with the type of piping being used and shall be of a sanitary or DWV design for drainage and venting. Waterpipe fittings shall be permitted for use in engineer designed systems where the design indicates compliance with Section P P Drainage. Drainage fittings shall have a smooth interior waterway of the same diameter as the piping served. All fittings shall conform to the type of pipe used. Drainage fittings shall have no ledges, shoulders or reductions which can retard or obstruct drainage flow in the piping. Threaded drainage pipe fittings shall be of the recessed drainage type, black or galvanized. Drainage fittings shall be designed to maintain one-fourth unit vertical in 12 units horizontal (2-percent slope) grade. P Other materials. Sheet lead, lead bends, lead traps and sheet copper shall comply with Sections P through P P Sheet lead. Sheet lead for the following uses shall weigh not less than indicated below: 1. Flashing of vent terminals, 3 psf (0.144 kn/m 2 ). 2. Prefabricated flashing for vent pipes, 2 1 / 2 psf (0.120 kn/m 2 ). P Lead bends and traps. Lead bends and lead traps shall not be less than inch (3.2 mm) wall thickness. P Sheet copper. Sheet copper for the following uses shall weigh not less than indicated below: 1. General use, 12 ounces per square feet (3.82 L/m 2 ). 2. Flashing for vent pipes, 8 ounces per square feet (2.55 L/m 2 ). SECTION P3003 JOINTS AND CONNECTIONS P Tightness. Joints and connections in the DWV system shall be gas tight and water tight for the intended use or pressure required by test. P Prohibited joints. Running threads and bands shall not be used in the drainage system. Drainage and vent piping shall not be drilled, tapped, burned or welded. The following types of joints and connections shall be prohibited: 1. Cement or concrete. 2. Mastic or hot-pour bituminous joints. 3. Joints made with fittings not approved for the specific installation. 4. Joints between different diameter pipes made with elastomeric rolling O-rings. 5. Solvent-cement joints between different types of plastic pipe. 6. Saddle-type fittings. P Joint requirements, similar piping materials. Joints between similar piping materials shall be made in accordance with Sections P through P P Cast iron pipe, caulked joints. Lead-caulked joints for cast-iron hub and spigot soil pipe shall be firmly packed with oakum and filled with molten lead not less than 1 inch (25.4 mm) deep and shall not extend more than FLORIDA BUILDING CODE RESIDENTIAL 30.1

34 SANITARY DRAINAGE TABLE P DRAIN, WASTE AND VENT PIPING AND FITTING MATERIALS MATERIAL STANDARD Welded and seamless steel pipe (black or galvanized) ASTM A 53 Cast-iron soil pipe and fittings (hub and spigot) ASTM A 74 Cast-iron fittings (threaded) ASTM A 126 Malleable iron fittings (threaded) ASTM A 197 Seamless copper pipe, standard sizes ASTM B 42 Seamless red brass pipe, standard sizes ASTM B 43 Seamless copper tube ASTM B 75 Seamless copper water tube Type K, L and M ASTM B 88 ABS-DWV pipe and fittings ASTM D 2661 PVC-DWV pipe and fittings ASTM D inch O.D. PVC-DWV pipe and fittings ASTM D 2949 ABS-DWV sch.40 pipe with cellular core ASTM F 628 Co-extruded PVC plastic pipe with cellular core ASTM F 891 Co-extended composite ABS DWV pipe and fittings ASTM F 1488 Cast-iron soil pipe and fittings (hubless) CISPI 301 Copper drainage tube (DWV) ASTM B 306 Mechanical couplings for drain, waste and vent pipe and sewer pipe ASTM C 1460; ASTM C 1461; CSA CAN/CSA B602 Solvent cement for ABS-DWV pipe and fittings ASTM D 2235 Solvent cement for PVC-DWV pipe and fittings ASTM D 2564 Socket bell for PVC-DWV pipe and fittings ASTM D 2672 Primers for solvent cemented PVC-DWV pipe and fittings ASTM F 656 Hubless cast-iron soil pipe and fittings ASTM A 888 Couplings for use in connection with hubless cast-iron soil pipe and fittings ASTM C 1460; ASTM C 1461; CISPI 310 Shielded couplings joining hubless cast-iron soil pipe and fittings ASTM C 1277; ASTM C 1460; ASTM C1461 Co-extruded composite ABS DWV schedule 40 IPS pipe (solid or cellular core) solvent cement fittings Co-extruded composite PVC DWV schedule 40 IPS pipe (solid or cellular core) solvent cement fittings Co-extruded composite PVC DWV IPS pipe DR PS140 or PS200 solvent cement fittings For SI: 1 inch = 25.4 mm. ASTM F 1488; ASTM D 2235; ASTM D 2661; ASTM F 628 ASTM F 1488; ASTM D 2564; ASTM D 2665; ASTM F 891 ASTM F 1488; ASTM D 2564; ASTM D 2665; ASTM F FLORIDA BUILDING CODE RESIDENTIAL

35 SANITARY DRAINAGE MATERIAL TABLE P BUILDING SEWER PIPING STANDARD Cast-iron pipe and fittings ASTM A 74 Cast-iron soil pipe and fittings for hubless sanitary system CISPI 301 Seamless copper tube ASTM B 75 Copper water tube ASTM B 88 Concrete sewer, storm drain and culvert pipe ASTM C 14 Compression joints for vitrified clay pipe and fittings ASTM C 425 Vitrified clay pipe and fittings ASTM C 700 Bitumenized fiber drain and sewer pipe ASTM D 1861 ABS-DWV pipe and fittings ASTM D 2661 Polyethylene (PE) plastic pipe (SDR-PR) ASTM F 714 PVC/DWV pipe and fittings ASTM D 2665 ABS Sewer pipe and fittings ASTM D inch O.D. PVC/DWV pipe and fittings ASTM D 2949 Type PSM/PVC sewer pipe and fittings ASTM D 3034 Joints for drain and sewer plastic pipe using flexible elastomeric seals ASTM D 3212 ABS Schedule 40 DWV pipe with cellular core ASTM F 628 Co-extruded PVC schedule 40, PS 50 or PS 100 plastic pipe with cellular core ASTM F 891 Copper drainage tube (DWV) ASTM B 306 Mechanical couplings for drain waste and vent pipe and sewer pipe ASTM C 1460; ASTM C 1461; CSA CAN/CSA B602 Solvent cement for ABS-DWV pipe and fittings ASTM D 2235 Solvent cement for PVC-DWV pipe and fittings ASTM D 2564 Socket bell for PVC-DWV pipe and fittings ASTM D 2672 Primers for solvent cemented PVC-DWV pipe and fittings ASTM F 656 Couplings for hubless cast-iron soil pipe and fittings ASTM C 1460; ASTM C 1461; CISPI 310 Shielded couplings joining cast-iron soil pipe and fittings ASTM C 1277; ASTM C 1460; ASTM C 1461 Cast-iron soil pipe and fittings for hubless sanitary system ASTM A 888 Co-extruded composite ABS DWV schedule 40 IPS pipe (solid or cellular core) solvent cement fittings ASTM F 1488; ASTM D 2235; ASTM D 2661; ASTM F 628 Co-extruded composite PVC DWV schedule 40 IPS pipe (solid or cellular core) solvent cement fittings ASTM F 1488; ASTM D 2564; ASTM D 2665; ASTM F 891 Co-extruded composite PVC DWV IPS-DR-PS in PS35, PS50, PS100, PS140, PS 200 solvent cement fittings ASTM F 1488; ASTM D 2564; ASTM D 2665; ASTM F 891 Co-extruded composite ABS sewer and drain pipe DR-PS in PS35, PS50, PS100, PS140, PS200 solvent cement fittings ASTM F 1488; ASTM D 2235; ASTM D 2751 Co-extruded composite PVC sewer and drain pipe DR-PS in PS35, ASTM F 1488; ASTM D 2564; ASTM D 3034; ASTM F 789 PS50, PS100, PS140, PS200 solvent cement fittings For SI: 1 inch = 25.4 mm. FLORIDA BUILDING CODE RESIDENTIAL 30.3

36 SANITARY DRAINAGE inch (3.2 mm) below the rim of the hub. Lead shall be poured in one operation and shall be caulked tight. P Cast iron pipe, mechanical joints. Mechanical joints used with cast-iron pipe shall comply with Section P or P P Hubless pipe. Joints for hubless cast-iron soil pipe shall be made with an approved elastomeric sealing sleeve and stainless steel-retaining sleeve. P Hub and spigot joints. An approved positive-seal one-piece elastomeric compression-type gasket that is placed in the hub before the spigot is inserted shall be permitted to be used for joining hub and spigot cast-iron soil piping and fittings as an alternate for lead and oakum joints. P Threaded pipe joints. Threaded joints shall conform to American National Taper Pipe Thread. Pipe ends shall be reamed or filed to size and all chips removed. Pipe-joint compound or tape shall be applied on the male threads only. P Soldered joints. Soldered joints in tubing shall be made with fittings approved for DWV piping. Surfaces to be soldered shall be cleaned bright. The joints shall be properly fluxed and made with approved solder. Fluxes shall conform to ASTM B 813. The joint shall be soldered with a solder conforming to ASTM B 32. P Clay or cement soil pipe joints. Joints between concrete pipe or fittings shall be made with an elastomeric seal conforming to ASTM C 443, ASTM C 1173, CSA CAN/CSA A257.3 or CSA CAN/CSA-B602. Joints between vitrified clay pipe or fittings shall be made with an elastomeric seal conforming to ASTM C 425, ASTM C 1173 or CSA CAN/CSA-B602. P Plastic pipe joints. Joints in plastic piping shall be made with approved fittings by solvent cementing, elastomeric gaskets or other approved manufactured system. P Slip joints. Slip joints shall be made using approved gaskets or compression washers. Ground joint connections that allow adjustment of tubing but provide a rigid joint when made up shall not be considered slip joints. When a ground joint connection is used and the assembled joint does not permit free movement, the joint need not be accessible. P Joints between different piping materials. Joints between different piping material shall comply with Sections P through P P Hub type cast iron or vitrified clay to other piping materials. Joints between hub-type drainage piping and other materials, including steel, plastic and copper may be made with a lead and oakum joint and an approved caulking ferrule of the other material or by a lead and oakum joint directly with the other material omitting the adapter ferrule. Where the outside diameter of the other material matches that of the hub pipe, an elastomeric gasket designed for use with the hub pipe may be used. P Hubless pipe to other piping materials. Joints between hubless drainage piping and any other materials shall be joined with an approved elastomeric sleeve and stainless steel clamp. P Threaded pipe to cast iron soil pipe. Joints between threaded pipe and cast-iron soil pipe shall be made with approved adapter fittings. P Threaded pipe to copper or plastic pipe. Joints from threaded pipe to copper or plastic piping shall utilize approved adapter fittings. P Floor and Wall drainage connections. Connections between the drain and the floor outlet plumbing fixtures shall be made with a floor flange. The flange shall be attached to the drain and anchored to the structure. Connections between the drain and wall-hung water closets shall be made with an approved extension nipple or horn adaptor. The water closet shall be bolted to the hanger with corrosion resistant bolts or screws. Joints shall be sealed with an approved elastometric gasket or setting compound conforming to FS TT-P-1536a. P Floor flanges. Floor flanges for water closets or similar fixtures shall not be less than 1/8 inch (3.2 mm) thick for brass, ¼ inch (6.4 mm) thick for plastic and ¼ thick (6.4 mm) thick and not less than a 2-inch (51 mm) calking depth for cast iron or galvanized malleable iron. Floor flanges of hard lead shall weigh not less than 1 pound 9 ounces (0,7 kg) and shall be composed of lead alloy with not less than 7.75 percent antimony by weight. Closet screws and bolts shall be of brass. Flanges shall be secured to the building structure with corrosion-resistant screws or bolts. P Securing floor and outlet fixtures. Floor outlet fixtures shall be secured to the floor or floor flanges by screws or bolts of corrosion-resistant material FLORIDA BUILDING CODE RESIDENTIAL

37 SANITARY DRAINAGE TABLE P DRAINAGE FIXTURE UNIT (d.f.u.) VALUES FOR VARIOUS PLUMBING FIXTURES TYPE OF FIXTURE OR GROUP OF FIXTURES DRAINAGE FIXTURE UNIT VALUE (d.f.u.) a Bar sink 1 Bathtub (with or without shower head and/or whirlpool attachments) 2 Bidet 1 Clothes washer standpipe 2 Dishwasher 2 Floor drain b 0 Kitchen sink 2 Lavatory 1 Laundry tub 2 Shower stall 2 Water closet (1.6 gallons per flush) 3 Water closet (greater than 1.6 gallons per flush) 4 Full-bath group with bathtub (with 1.6 gallon per flush water closet, and with or without shower head and/or whirlpool attachment on the bathtub or shower stall) 5 Full-bath group with bathtub (water closet greater than 1.6 gallon per flush, and with or without shower head and/or whirlpool attachment on the bathtub or 6 shower stall) Half-bath group (1.6 gallon per flush water closet plus lavatory) 4 Half-bath group (water closet greater than 1.6 gallon per flush plus lavatory) 5 Kitchen group (dishwasher and sink with or without garbage grinder) 2 Laundry group (clothes washer standpipe and laundry tub) 3 Multiple-bath groups c : 1.5 baths 2 baths 2.5 baths 3 baths 3.5 baths For SI: 1 gallon = L. a. For a continuous or semicontinuous flow into a drainage system, such as from a pump or similar device, 1.5 fixture units shall be allowed per gpm of flow.forafixture not listed, use the highest d.f.u. value for a similar listed fixture. b. A floor drain itself adds no hydraulic load. However, where used as a receptor, the fixture unit value of the fixture discharging into the receptor shall be applicable. c. Add 2 d.f.u. for each additional full bath FLORIDA BUILDING CODE RESIDENTIAL 30.5

38 SANITARY DRAINAGE SECTION P3004 DETERMINING DRAINAGE FIXTURE UNITS P DWV system load. The load on DWV-system piping shall be computed in terms of drainage fixture unit (d.f.u.) values in accordance with Table P SECTION P3005 DRAINAGE SYSTEM P Drainage fittings and connections. Changes in direction in drainage piping shall be made by the appropriate use of sanitary tees, wyes, sweeps, bends or by a combination of these drainage fittings in accordance with Table P Change in direction by combination fittings, heel or side inlets or increasers shall be installed in accordance with Table P and Sections P through P based on the pattern of flow created by the fitting. TYPE OF FITTING PATTERN TABLE P FITTINGS FOR CHANGE IN DIRECTION Horizontal to vertical c CHANGE IN DIRECTION Vertical to horizontal Horizontal to horizontal Sixteenth bend X X X Eighth bend X X X Sixth bend X X X Quarter bend X X a X a Short sweep X X a,b X a Long sweep X X X Sanitary tee X c Wye X X X Combination wye and eighth bend X X X For SI: 1 inch = 25.4 mm. a. The fittings shall only be permitted for a 2 inch or smaller fixture drain. b. Three inches and larger. c. For a limitation on multiple connection fittings, see Section P P Horizontal to vertical (multiple connection fittings). Double fittings such as double sanitary tees and tee-wyes or approved multiple connection fittings and back-to-back fixture arrangements that connect two or more branches at the same level shall be permitted as long as directly opposing connections are the same size and the discharge into directly opposing connections is from similar fixture types or fixture groups. Double sanitary tee patterns shall not receive the discharge of back-to-back water closets and fixtures or appliances with pumping action discharge. Exception: Back-to-back water closet connections to double sanitary tee patterns shall be permitted where the horizontal developed length between the outlet of the water closet and the connection to the double sanitary tee is 18 inches (457 mm) or greater. P Heel- or side-inlet quarter bends, drainage. Heel-inlet quarter bends shall be an acceptable means of connection, except where the quarter bends serves a water closet. A low-heel inlet shall not be used as a wet-vented connection. Side-inlet quarter bends shall be an acceptable means of connection for both drainage, wet venting and stack venting arrangements. P Heel- or side-inlet quarter bends, venting. Heel-inlet or side-inlet quarter bends, or any arrangement of pipe and fittings producing a similar effect, shall be acceptable as a dry vent where the inlet is placed in a vertical position. The inlet is permitted to be placed in a horizontal position only where the entire fitting is part of a dry vent arrangement. P Water closet connection between flange and pipe. One-quarter bends 3 inches (76 mm) in diameter shall be acceptable for water closet or similar connections, provided a 4-inch-by-3-inch (102 mm by 76 mm) flange is installed to receive the closet fixture horn. Alternately, a 4-inch-by-3-inch (102 mm by 76 mm) elbow shall be acceptable with a 4-inch (102 mm) flange. P Dead ends. Dead ends shall be prohibited except where necessary to extend a cleanout or as an approved part of a rough-in more than 2 feet (610 mm) in length. P Provisions for future fixtures. Where drainage has been roughed-in for future fixtures, the drainage unit values of the future fixtures shall be considered in determining the required drain sizes. Such future installations shall be terminated with an accessible permanent plug or cap fitting. P Change in size. The size of the drainage piping shall not be reduced in size in the direction of the flow. A 4-inch by 3-inch (102 mm by 76 mm) water closet connection shall not be considered as a reduction in size. P Drainage pipe cleanouts. Drainage pipe cleanouts shall comply with Sections P through P Exception: These provisions shall not apply to pressurized building drains and building sewers that convey the discharge of automatic pumping equipment to a gravity drainage system. P Materials. Cleanouts shall be liquid and gas tight. Cleanout plugs shall be brass or plastic. P Spacing. Cleanouts shall be installed not more than 100 feet ( mm) apart in horizontal drainage lines. P Underground drainage cleanouts. When installed in underground drains, cleanouts shall be extended vertically to or above finished grade either inside or outside the building. P Change of direction. Cleanouts shall be installed at each change of direction of the drainage system greater than 45 degrees, except not more than one cleanout shall be required in each 40 feet ( mm) of run regardless of change in direction. P Accessibility. Cleanouts shall be accessible. Minimum clearance in front of cleanouts shall be 18 inches on 3 inches (457 mm on 76 mm) and larger pipes, and 12 inches (305 mm) on smaller pipes. Concealed cleanouts shall be provided with access of sufficient size to permit removal of the cleanout plug and rodding of the system FLORIDA BUILDING CODE RESIDENTIAL

39 SANITARY DRAINAGE Cleanout plugs shall not be concealed by permanent finishing material. P Base of stacks. Accessible cleanouts shall be provided near the base of each vertical waste or soil stack. Alternatively, such cleanouts may be installed outside the building within 3 feet (914 mm) of the building wall. P Building drain and building sewer junction. There shall be a cleanout near the junction of the building drain and building sewer. This cleanout shall be either inside or outside the building wall, provided it is brought up to finish grade or to the lowest floor level. An accessible interior building drain cleanout or test tee within close proximity to the building drain exit point shall fulfill this requirement. P Direction of flow. Cleanouts shall be installed so that the cleanout opens to allow cleaning in the direction of the flow of the drainage line. P Cleanout size. Cleanouts shall be sized in accordance with Table P Exception: Cast iron cleanout sizing shall be in accordance with referenced standards in Table P3002.1, ASTM A 74 for hub and spigot fittings or ASTM A 888 or CISPI 301 for hubless fittings. For SI: PIPE SIZE (inches) TABLE P CLEANOUTS CLEANOUT SIZE (inches) 1 1 / / / / 2 4 and larger 3 1 / 2 1 inch = 25.4 mm. P Cleanout equivalent. A fixture trap or a fixture with integral trap, readily removable without disturbing concealed piping shall be acceptable as a cleanout equivalent. P Connections to cleanouts prohibited. Cleanout openings shall not be used for the installation of new fixtures except where approved and an acceptable alternate cleanout is provided. P Horizontal drainage piping slope. Horizontal drainage piping shall be installed in uniform alignment at uniform slopes not less than one-fourth unit vertical in 12 units horizontal (2-percent slope) for 2 1 / 2 -inch (64 mm) diameter and less, and not less than one-eighth unit vertical in 12 units horizontal (1-percent slope) for diameters of 3 inches (76 mm) or more. P Drain pipe sizing. Drain pipes shall be sized according to drainage fixture unit (d.f.u.) loads. The size of the drainage piping shall not be reduced in size in the direction of flow. The following general procedure is permitted to be used: 1. Draw an isometric layout or riser diagram denoting fixtures on the layout. 2. Assign d.f.u. values to each fixture group plus individual fixtures using Table P Starting with the top floor or most remote fixtures, work downstream toward the building drain accumulating d.f.u. values for fixture groups plus individual fixtures for each branch. Where multiple bath groups are being added, use the reduced d.f.u. values in Table P3004.1, which take into account probability factors of simultaneous use. 4. Size branches and stacks by equating the assigned d.f.u. values to pipe sizes shown in Table P Determine the pipe diameter and slope of the building drain and building sewer based on the accumulated d.f.u. values, using Table P P Fixture branch and stack sizing. 1. Branches and stacks shall be sized according to Table P Below grade drain pipes shall not be less than 1 1 / 2 inches (38 mm) in diameter. 2. Minimum stack size. Drain stacks shall not be smaller than the largest horizontal branch connected, with the following exceptions: 2.1. A 4-inch by 3-inch (102 mm by 76 mm) closet bend or flange or a 4-inch (102 mm) closet bend into a 3-inch (76 mm) stack tee shall be acceptable (see Section P ). TABLE P MAXIMUM FIXTURE UNITS ALLOWED TO BE CONNECTED TO BRANCHES AND STACKS NOMINAL PIPE SIZE (inches) ANY HORIZONTAL FIXTURE BRANCH ANY ONE VERTICAL STACK OR DRAIN 1 1 / 4 a 1 1 / 2 b b / 2 b For SI: 1 inch = 25.4 mm. a. 1 1 / 4 inch pipe size limited to a single fixture drain or trap arm. See Table P b. No water closets. P Building drain and sewer size and slope. Pipe sizes and slope shall be determined from Table P on the basis of drainage load in fixture units (d.f.u.) computed from Table P TABLE P MAXIMUM NUMBER OF FIXTURE UNITS ALLOWED TO BE CONNECTED TO THE BUILDING DRAIN, BUILDING DRAIN BRANCHES OR THE BUILDING SEWER SLOPE PER FOOT DIAMETER OF PIPE (inches) 1 / 8 inch 1 / 4 inch For SI: 1 inch = 25.4 mm, 1 foot = mm. 1 / 2 inch 1 1 / 2 a,b Note a Note a 2 b / 2 b FLORIDA BUILDING CODE RESIDENTIAL 30.7

40 SANITARY DRAINAGE a. 1 1 / 2 inch pipe size limited to a building drain branch serving not more than two waste fixtures, or not more than one waste fixture if serving a pumped discharge fixture or garbage grinder discharge. b. No water closets. SECTION P3006 SIZING OF DRAIN PIPE OFFSETS P Vertical offsets. An offset in a vertical drain, with a change of direction of 45 degrees (0.79 rad) or less from the vertical, shall be sized as a straight vertical drain. P Horizontal offsets above the lowest branch. A stack with an offset of more than 45 degrees (0.79 rad) from the vertical shall be sized as follows: 1. The portion of the stack above the offset shall be sized as for a regular stack based on the total number of fixture units above the offset. 2. The offset shall be sized as for a building drain in accordance with Table P The portion of the stack below the offset shall be sized as for the offset or based on the total number of fixture units on the entire stack, whichever is larger. P Horizontal offsets below the lowest branch. In soil or waste stacks below the lowest horizontal branch, there shall be no change in diameter required if the offset is made at an angle not greater than 45 degrees (0.79 rad) from the vertical. If an offset greater than 45 degrees (0.79 rad) from the vertical is made, the offset and stack below it shall be sized as a building drain (see Table P ). vented sump from which the contents shall be lifted and discharged into the building gravity drainage system by automatic pumping equipment. P Drainage piping. The system of drainage piping below the sewer level shall be installed and vented in a manner similar to that of the gravity system. Only such drains that must be lifted for discharge shall be discharged into sumps. All other drains shall be discharged by gravity. Exception: Macerating toilet systems shall be permitted as an alternate to the sewage pump or ejector system. The macerating toilet shall comply with ASME A or CSA B45.9 and shall be installed in accordance with the manufacturers instructions. SECTION P3008 BACKWATER VALVES P General. Fixtures that have flood level rims located below the elevation of the next upstream manhole cover of the public sewer serving such fixtures shall be protected from backflow of sewage by installing an approved backwater valve. Fixtures having flood level rims above the elevation of the next upstream manhole shall not discharge through the backwater valve. Backwater valves shall be provided with access. P Construction. Backwater valves shall have noncorrosive bearings, seats and self-aligning discs, and shall be constructed to ensure a positive mechanical seal. Valve access covers shall be water tight. SECTION P3007 SUMPS AND EJECTORS P Sewage ejectors or sewage pumps. A sewage ejector, sewage pump, or grinder pump receiving discharge from a water closet shall have minimum discharge velocity of 1.9 feet per second (0.579 m/s) throughout the discharge piping to the point of connection with a gravity building drain, gravity sewer or pressure sewer system. A nongrinding pump or ejector shall be capable of passing a 1.5-inch-diameter (38 mm) solid ball, and the discharge piping shall be not less than 2 inches (51 mm) in diameter. The discharge piping of grinding pumps shall be not less than 1.25 inches (32 mm) in diameter. A check valve and a gate valve located on the discharge side of the check valve shall be installed in the pump or ejector discharge piping between the pump or ejector and the drainage system. Access shall be provided to such valves. Such valves shall be located above the sump cover or, when the discharge pipe from the ejector is below grade, the valves shall be accessibly located outside the sump below grade in an access pit with a removeable access cover. Exception: Macerating toilet systems shall be permitted to have the discharge pipe sized in accordance with manufacturer s instructions, but not less than 0.75 inch (19.1 mm) in diameter. P Building drains below sewer (building subdrains). Building drains which cannot be discharged to the sewer by gravity flow shall be discharged into a tightly covered and 30.8 FLORIDA BUILDING CODE RESIDENTIAL

41 CHAPTER 31 VENTS SECTION P3101 VENT SYSTEMS P General. This chapter shall govern the selection and installation of piping, tubing and fittings for vent systems. This chapter shall control the minimum diameter of vent pipes, circuit vents, branch vents and individual vents, and the size and length of vents and various aspects of vent stacks and stack vents. Additionally, this chapter regulates vent grades and connections, height above fixtures and relief vents for stacks and fixture traps, and the venting of sumps and sewers. P Trap seal protection. The plumbing system shall be provided with a system of vent piping that will permit the admission or emission of air so that the seal of any fixture trap shall not be subjected to a pneumatic pressure differential of more than 1 inch of water column (249 Pa). P Venting required. Every trap and trapped fixture shall be vented in accordance with one of the venting methods specified in this chapter. P Use limitations. The plumbing vent system shall not be utilized for purposes other than the venting of the plumbing system. P Extension outside a structure. In climates where the 97.5-percent value for outside design temperature is 0 F (-18 C) or less (ASHRAE 97.5-percent column, winter, see Chapter 3), vent pipes installed on the exterior of the structure shall be protected against freezing by insulation, heat or both. Vent terminals shall be protected from frost closure in accordance with Section P P Floodplain Management Construction Standards. This code specifically defers to the authority granted to local government by Title 44 CFR, sections 59 and 60. This code is not intended to supplant or supercede local ordinances adopted pursuant to that authority, nor are local floodplain management ordinances to be deemed amendments to the code. SECTION P3103 VENT TERMINALS P Roof extension. All open vent pipes which extend through a roof shall be terminated at least inches above the roof except that where a roof is to be used for any purpose other than weather protection, the vent extensions shall be run at least 7 feet (2134 mm) above the roof. P Freezing. Where the design temperature is less than 32 o F(0 o C), a water, soil or waste pipe shall not be installed outside of a building, in attics or crawl spaces, or be concealed in outside walls in any location subjected to freezing temperatures, unless adequate provision is made to protect them from freezing by insulation or heat or both. Water service pipe shall be installed not less than 12 inches (305 mm) deep or less than 6 inches (152 mm) below the frost line. P Flashings and sealing. The juncture of each vent pipe with the roof line shall be made water tight by an approved flashing. Vent extensions in walls and soffits shall be made weather tight by caulking. P Prohibited use. Vent terminals shall not be used as a flag pole or to support flag poles, TV aerials, or similar items, except when the piping has been anchored in an approved manner. P Location of vent terminal. An open vent terminal from a drainage system shall not be located less than 4 feet (1219 mm) directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, nor shall any such vent terminal be within 10 feet (3048 mm) horizontally of such an opening unless it is at least 2 feet (610 mm) above the top of such opening. P Extension through the wall. Vent terminals extending through the wall shall terminate a minimum of 10 feet (3048 mm) from the lot line and 10 feet (3048 mm) above the highest adjacent grade within 10 feet (3048 mm) horizontally of the vent terminal. Vent terminals shall not terminate under the overhang of a structure with soffit vents. Side wall vent terminals shall be protected to prevent birds or rodents from entering or blocking the vent opening. SECTION P3102 VENT STACKS AND STACK VENTS P Stack required. Every building shall have a vent stack or a stack vent. Such vent shall run undiminished in size and as directly as possible from the building drain through to the open air above the roof. P Vent connection to drainage system. Every vent stack shall connect to the base of the drainage stack. The vent stack shall connect at or below the lowest horizontal branch. Where the vent stack connects to the building drain, the connection shall be located within 10 pipe diameters downstream of the drainage stack. A stack vent shall be a vertical extension of the drainage stack. P Vent termination. Every vent stack or stack vent shall terminate outdoors to the open air or terminate to a stack-type air admittance valve. SECTION P3104 VENT CONNECTIONS AND GRADES Connection. All individual branch and circuit vents shall connect to a vent stack, stack vent or extend to the open air. Exception: Individual, branch and circuit vents shall be permitted to terminate at an air admittance valve in accordance with Section P3114. P Grade. All vent and branch vent pipes shall be so graded, connected and supported as to allow moisture and condensate to drain back to the soil or waste pipe by gravity. FLORIDA BUILDING CODE RESIDENTIAL 31.1

42 VENTS P Vent connection to drainage system. Every dry vent connecting to a horizontal drain shall connect above the centerline of the horizontal drain pipe. P Vertical rise of vent. Every dry vent shall rise vertically to a minimum of 6 inches (152 mm) above the flood level rim of the highest trap or trapped fixture being vented. P Height above fixtures. A connection between a vent pipe and a vent stack or stack vent shall be made at least 6 inches (152 mm) above the flood level rim of the highest fixture served by the vent. Horizontal vent pipes forming branch vents shall be at least 6 inches (152 mm) above the flood level rim of the highest fixture served. P Vent for future fixtures. Where the drainage piping has been roughed-in for future fixtures, a rough-in connection for a vent shall be installed a minimum of one-half the diameter of the drain. The vent rough-in shall connect to the vent system or shall be vented by other means as provided in this chapter. The connection shall be identified to indicate that the connection is a vent. 4. The diameter of Section B shall be one pipe size larger than the diameter of Section A. 5. The length of Section B shall not be more than 36 inches (914 mm). 6. The diameter of Section C shall be one pipe size larger than the diameter of Section B. 7. The total length of Section A and Section C shall not exceed the distance allowed in Table P Bends shall be the diameter of the largest connected section. P Crown vent. A vent shall not be installed within two pipe diameters of the trap weir. SECTION P3105 FIXTURE VENTS P Distance of trap from vent. Each fixture trap shall have a protecting vent located so that the slope and the developed length in the fixture drain from the trap weir to the vent fitting are within the requirements set forth in Table P Exception: The developed length of the fixture drain from the trap weir to the vent fitting for self-siphoning fixtures, such as water closets, shall not be limited. For SI: TABLE P MAXIMUM DISTANCE OF FIXTURE TRAP FROM VENT SIZE OF TRAP (inches) SLOPE (inch per foot) DISTANCE FROM TRAP (feet) 1 1 / 4 1 / / 2 1 / / / / inch = 25.4 mm, 1 foot = mm, 1 inch per foot = 83.3 mm/m. P Fixture drains. The total fall in a fixture drain due to pipe slope shall not exceed one pipe diameter, nor shall the vent pipe connection to a fixture drain, except for water closets, be below the weir of the trap, except as provided in Section P P Vertical leg for waste fixture drains. A vertical leg (see Figure P3105.3) is permitted within a fixture drain of a waste fixture in accordance with the following criteria: 1. Minimum trap diameter shall be in accordance with Table P The diameter of Section A shall be equal to the diameter of the trap. 3. The length of Section A shall not be less than 8 inches (203 mm) and in accordance with Table P FIGURE P VERTICAL LEG FIXTURE DRAIN SCHEMATIC SECTION P3106 INDIVIDUAL VENT P Individual vent permitted. Each trap and trapped fixture is permitted to be provided with an individual vent. The individual vent shall connect to the fixture drain of the trap or trapped fixture being vented. SECTION P3107 COMMON VENT P Individual vent as common vent. An individual vent is permitted to vent two traps or trapped fixtures as a common vent. The traps or trapped fixtures being common vented shall be located on the same floor level. P Connection at the same level. Where the fixture drains being common vented connect at the same level, the vent connection shall be at the interconnection of the fixture drains or downstream of the interconnection. P Connection at different levels. Where the fixture drains connect at different levels, the vent shall connect as a vertical extension of the vertical drain. The vertical drain pipe connecting the two fixture drains shall be considered the vent for the lower fixture drain, and shall be sized in accordance with Table P The upper fixture shall not be a water closet FLORIDA BUILDING CODE RESIDENTIAL

43 VENTS For SI: PIPE SIZE (inches) TABLE P COMMON VENT SIZES MAXIMUM DISCHARGE FROM UPPER FIXTURE DRAIN (d.f.u.) 1 1 / / 2 to inch = 25.4 mm. SECTION P3108 WET VENTING P Wet vent permitted. Any combination of fixtures within two bathroom groups located on the same floor level are permitted to be vented by a wet vent. The wet vent shall be considered the vent for the fixtures and shall extend from the connection of the dry vent along the direction of the flow in the drain pipe to the most downstream fixture drain connection to the horizontal branch drain. Only the fixtures within the bathroom groups shall connect to the wet vented horizontal branch drain. Any additional fixtures shall discharge downstream of the wet vent. [See Figures P3108.1(1), P3108.1(2) and P3108.1(3) for typical wet vent configurations.] P Vent connections. The dry vent connection to the wet vent shall be an individual vent or common vent to the lavatory, bidet, shower or bathtub. P Size. Horizontal and vertical wet vents shall be of a minimum size as specified in Table P3108.3, based on the fixture unit discharge to the wet vent. WET VENT PIPE SIZE (inches) TABLE P WET VENT SIZE FIXTURE UNIT LOAD (d.f.u.) where installed in accordance with the requirements of this section. P Stack installation. The waste stack shall be vertical, and both horizontal and vertical offsets shall be prohibited. Every fixture drain shall connect separately to the waste stack. The stack shall not receive the discharge of water closets or urinals. (See Figure P for typical waste stack venting.) P Stack vent. A stack vent shall be provided for the waste stack. The size of the stack vent shall be equal to the size of the waste stack. P Waste stack size. The waste stack shall be sized based on the total discharge to the stack and the discharge within a branch interval in accordance with Table P The waste stack shall be the same size throughout the length of the waste stack. STACK SIZE (inches) TABLE P WASTE STACK VENT SIZE MAXIMUM NUMBER OF FIXTURE UNITS (d.f.u.) Total discharge into one branch interval Total discharge for stack 1 1 / / 2 No limit 8 3 No limit 24 4 No limit / 2 1 P Circuit vent permitted. A maximum of eight fixtures 2 4 connected to a horizontal branch drain shall be permitted to be circuit vented. Each fixture drain shall connect horizontally to 2 1 / 2 6 the horizontal branch being circuit vented. The horizontal 3 12 branch drain shall be classified as a vent from the most downstream fixture drain connection to the most upstream fixture 4 32 drain connection to the horizontal branch. For SI: 1 inch = 25.4 mm. P Vent connection. The circuit vent connection shall be P Vertical wet vent. A combination of fixtures located located between the two most upstream fixture drains. The vent on the same floor level are permitted to be vented by a vertical shall connect to the horizontal branch and shall be installed in wet vent. The vertical wet vent shall extend from the connection to the dry vent down to the lowest fixture drain connection. receive the discharge of any soil or waste. accordance with Section P3104. The circuit vent pipe shall not Each fixture shall connect independently to the vertical wet vent. All water closet drains shall connect at the same elevation. P Slope and size of horizontal branch. The maximum Other fixture drains shall connect above or at the same elevation as the water closet fixture drains. The dry vent connection one unit vertical in 12 units horizontal (8-percent slope). The slope of the vent section of the horizontal branch drain shall be to the vertical wet vent shall be an individual or common vent entire length of the vent section of the horizontal branch drain serving one or two fixtures. [See Figures P3108.2(1) and shall be sized for the total drainage discharge to the branch in P3108.2(2) for typical vertical wet vent configurations.] accordance with Table P P Additional fixtures. Fixtures, other than the circuit-vented fixtures, are permitted to discharge to the horizontal branch drain. Such fixtures shall be located on the same SECTION P3109 WASTE STACK VENT floor as the circuit-vented fixtures and shall be either individually or common vented. (See Figure P for a typical cir- P Waste stack vent permitted. A waste stack shall be considered a vent for all of the fixtures discharging to the stack cuit vent with additional noncircuit vented fixtures.) For SI: 1 inch = 25.4 mm. SECTION P3110 CIRCUIT VENTING FLORIDA BUILDING CODE RESIDENTIAL 31.3

44 VENTS A. TYPICAL SINGLE-BATH ARRANGEMENT B. TYPICAL POWDER ROOM C. MORE ELABORATE SINGLE-BATH ARRANGEMENT D. COMBINATION WET- AND STACK-VENTING WITH STACK FITTING For SI: 1 inch = 25.4 mm. NOTE: This figure is for illustration purposes only and the written text shall apply. FIGURE P3108.1(1) TYPICAL SINGLE-BATH WET-VENT ARRANGEMENTS 31.4 FLORIDA BUILDING CODE RESIDENTIAL

45 VENTS A. TYPICAL BACK-TO-BACK BATHS B. DOUBLE BATHS WITH FIXTURES ON COMMON HORIZONTAL BRANCH, COMMON WET VENT C. DOUBLE BATHS WITH WASTE FIXTURES ON COMMON HORIZONTAL BRANCH, INDIVIDUAL WET VENTS For SI: 1 inch = 25.4 mm. NOTE: This figure is for illustration purposes only and the written text shall apply. FIGURE P3108.1(2) TYPICAL DOUBLE-BATH WET-VENT ARRANGEMENTS FLORIDA BUILDING CODE RESIDENTIAL 31.5

46 VENTS For SI: 1 inch = 25.4 mm. NOTE: This figure is for illustration purposes only and the written text shall apply. FIGURE P3108.1(3) TYPICAL HORIZONTAL WET VENTING 31.6 FLORIDA BUILDING CODE RESIDENTIAL

47 VENTS A. VERTICAL WET VENTING B. HORIZONTAL WET VENTING For SI: 1 inch = 25.4 mm. NOTE: This figure is for illustration purposes only and the written text shall apply. FIGURE P3108.2(1) TYPICAL METHODS OF WET VENTING FLORIDA BUILDING CODE RESIDENTIAL 31.7

48 VENTS For SI: 1 inch = 25.4 mm. NOTE: This figure is for illustration purposes only and the written text shall apply. FIGURE P3108.2(2) SINGLE-STACK SYSTEM FOR A TWO-STORY DWELLING 31.8 FLORIDA BUILDING CODE RESIDENTIAL

49 VENTS For SI: 1 inch = 25.4 mm. Note: This figure is for illustration purposes only and the written text shall apply. FIGURE P WET STACK VENTING FLORIDA BUILDING CODE RESIDENTIAL 31.9

50 VENTS For SI: 1 inch = 25.4 mm. Note: This figure is for illustration purposes only and the written text shall apply. FIGURE P CIRCUIT VENT WITH ADDITIONAL NONCIRCUIT VENTED FLORIDA BUILDING CODE RESIDENTIAL

51 VENTS SECTION P3111 COMBINATION WASTE AND VENT SYSTEM P Type of fixtures. A combination waste and vent system shall not serve fixtures other than floor drains, standpipes, sinks, lavatories and drinking fountains. A combination waste and vent system shall not receive the discharge of a food waste grinder. P Installation. The only vertical pipe of a combination drain and vent system shall be the connection between the fixture drain of a sink, lavatory, standpipe or drinking fountain, and the horizontal combination waste and vent pipe. The maximum vertical distance shall be 8 feet (2438 mm). P Slope. The horizontal combination waste and vent pipe shall have a maximum slope of one-half unit vertical in 12 units horizontal (4-percent slope). The minimum slope shall be in accordance with Section P P Connection. The combination waste and vent pipe shall connect to a horizontal drain that is vented or a vent shall connect to the combination waste and vent. The vent connecting to the combination waste and vent pipe shall extend vertically a minimum of 6 inches (152 mm) above the flood level rim of the highest fixture being vented before offsetting horizontally. P Vent size. The vent shall be sized for the total fixture unit load in accordance with Section P P Fixture branch or drain. The fixture branch or fixture drain shall connect to the combination waste and vent within a distance specified in Table P The combination waste and vent pipe shall be considered the vent for the fixture. P Size. The minimum size of a combination waste and vent pipe shall be in accordance with Table P TABLE P SIZE OF COMBINATION WASTE AND VENT PIPE MAXIMUM NUMBER OF FIXTURE UNITS (d.f.u.) outlet of the fixture being vented before offsetting horizontally or vertically downward. The vent or branch vent for multiple island fixture vents shall extend to a minimum of 6 inches (152 mm) above the highest island fixture being vented before connecting to the outside vent terminal. P Vent installation below the fixture flood level rim. The vent located below the flood level rim of the fixture being vented shall be installed as required for drainage piping in accordance with Chapter 30, except for sizing. The vent shall be sized in accordance with Section P The lowest point of the island fixture vent shall connect full size to the drainage system. The connection shall be to a vertical drain pipe or to the top half of a horizontal drain pipe. Cleanouts shall be provided in the island fixture vent to permit rodding of all vent piping located below the flood level rim of the fixtures. Rodding in both directions shall be permitted through a cleanout. SECTION P3113 VENT PIPE SIZING P Size of vents. The minimum required diameter of individual vents, branch vents, circuit vents, vent stacks and stack vents shall be at least one-half the required diameter of the drain served. The required size of the drain shall be determined in accordance with Chapter 30. Vent pipes shall be not less than1 1 / 4 inch (32 mm) in diameter. Vents exceeding 40 feet ( mm) in developed length shall be increased by one nominal pipe size for the entire developed length of the vent pipe. P Developed length. The developed length of individual, branch, and circuit vents shall be measured from the farthest point of vent connection to the drainage system, to the point of connection to the vent stack, stack vent or termination outside of the building. P Branch vents. Where branch vents are connected to a Connecting to a Connecting to a DIAMETER PIPE horizontal branch building drain or common branch vent, the common branch vent shall be sized in (inches) or stack building subdrain accordance with this section, based on the size of the common horizontal drainage branch that is or would be required to serve the total drainage fixture unit (dfu) load being vented. 2 1 / P Sump vents. Sump vent sizes shall be determined in accordance with Sections P and P For SI: 1 inch = 25.4 mm. P Sewage pumps and sewage ejectors other than pneumatic. Drainage piping below sewer level shall be vented in a similar manner to that of a gravity system. SECTION P3112 Building sump vent sizes for sumps with sewage pumps or ISLAND FIXTURE VENTING sewage ejectors, other than pneumatic, shall be determined in accordance with Table P P Limitation. Island fixture venting shall not be permitted for fixtures other than sinks and lavatories. Kitchen sinks P Pneumatic sewage ejectors. The air pressure relief pipe from a pneumatic sewage ejector shall be con- with a dishwasher waste connection, a food waste grinder, or both, in combination with the kitchen sink waste, shall be permitted to be vented in accordance with this section. nected to an independent vent stack terminating as required for vent extensions through the roof. The relief pipe shall be P Vent connection. The island fixture vent shall connect to the fixture drain as required for an individual or com- pressure, but shall not be less than 1 1 / 4 inches (32 mm) in sized to relieve air pressure inside the ejector to atmospheric mon vent. The vent shall rise vertically to above the drainage size. FLORIDA BUILDING CODE RESIDENTIAL 31.11

52 VENTS SECTION P3114 AIR ADMITTANCE VALVES P General. Vent systems utilizing air admittance valves shall comply with this section. Individual- and branch-type air admittance valves shall conform to ASSE Stack type air admittance valves shall conform to ASSE P Installation. The valves shall be installed in accordance with the requirements of this section and the manufacturer s installation instructions. Air admittance valves shall be installed after the DWV testing required by Section P or P has been performed. P Where permitted. Individual vents, branch vents, circuit vents and stack vents shall be permitted to terminate with a connection to an air admittance valve. P Location. Individual and branch air admittance valves shall be located a minimum of 4 inches (102 mm) above the horizontal branch drain or fixture drain being vented. Stack-type air admittance valves shall be located a minimum of 6 inches (152 mm) above the flood level rim of the highest fixture being vented. The air admittance valve shall be located within the maximum developed length permitted for the vent. The air admittance valve shall be installed a minimum of 6 inches (152 mm) above insulation materials where installed in attics. P Access and ventilation. Access shall be provided to all air admittance valves. The valve shall be located within a ventilated space that allows air to enter the valve. P Size. The air admittance valve shall be rated for the size of the vent to which the valve is connected. P Vent required. Within each plumbing system, a minimum of one stack vent or a vent stack shall extend outdoors to the open air. DISCHARGE CAPACITY OF PUMP (gpm) TABLE P SIZE AND LENGTH OF SUMP VENTS MAXIMUM DEVELOPED LENGTH OF VENT (feet) a Diameter of vent (inches) 1 1 / / / No limit b No limit No limit No limit No limit No limit No limit No limit No limit No limit No limit No limit No limit No limit For SI: 1 inch = 25.4 mm, 1 foot = mm, 1 gallon per minute (gpm) = L/m. a. Developed length plus an appropriate allowance for entrance losses and friction due to fittings, changes in direction and diameter. Suggested allowances shall be obtained from NBS Monograph 31 or other approved sources. An allowance of 50 percent of the developed length shall be assumed if a more precise value is not available. b. Actual values greater than 500 feet FLORIDA BUILDING CODE RESIDENTIAL

53 CHAPTER 32 TRAPS SECTION P3201 FIXTURE TRAPS P Design of traps. Traps shall be of standard design, shall have smooth uniform internal waterways, shall be self-cleaning and shall not have interior partitions except where integral with the fixture. Traps shall be constructed of lead, cast iron, cast or drawn brass or approved plastic. Tubular brass traps shall be not less than No. 20 gage (0.8 mm) thickness. Solid connections, slip joints and couplings are permitted to be used on the trap inlet, trap outlet, or within the trap seal. Slip joints shall be accessible. P Trap seals and trap seal protection. Traps shall have a liquid seal not less than 2 inches (51 mm) and not more than 4 inches (102 mm). Exception: Traps for floor drains shall be fitted with a trap primer or shall be of the deep seal design. P Trap setting and protection. Traps shall be set level with respect to their water seals and shall be protected from freezing. Trap seals shall be protected from siphonage, aspiration or back pressure by an approved system of venting (see Section P3101). P Building traps. Building traps shall not be installed, except in special cases where sewer gases are extremely corrosive or noxious, as directed by the building official. P Prohibited trap designs. The following types of traps are prohibited: 1. Bell traps. 2. Separate fixture traps with interior partitions, except those lavatory traps made of plastic, stainless steel or other corrosion-resistant material. 3. S traps (except as permitted under Section P3105.3). 4. Drum traps. 5. Trap designs with moving parts. P Number of fixtures per trap. Each plumbing fixture shall be separately trapped by a water seal trap placed as close as possible to the fixture outlet. The vertical distance from the fixture outlet to the trap weir shall not exceed 24 inches (610 mm). The distance of a clothes washer standpipe above a trap shall conform to Section P Fixtures shall not be double trapped. Exceptions to the separate trapping requirements are as follows: 1. Fixtures that have integral traps. 2. A single trap shall be permitted to serve two or three like fixtures limited to kitchen sinks, laundry tubs and lavatories. Such fixtures shall be adjacent to each other and located in the same room with a continuous waste arrangement. The trap shall be installed at the center fixture where three such fixtures are installed. Common trapped fixture outlets shall not be more than 30 inches (762 mm) apart. 3. The connection of a laundry tray waste line is permitted to be made into a standpipe for the automatic clothes-washer drain in accordance with Section P P Size of fixture traps. Fixture trap size shall be sufficient to drain the fixture rapidly and not less than the size indicated in Table P A trap shall not be larger than the drainage pipe into which the trap discharges. TABLE P SIZE OF TRAPS AND TRAP ARMS FOR PLUMBING FIXTURES PLUMBING FIXTURE Bathtub (with or without shower head and/or whirlpool attachments) TRAP SIZE MINIMUM (inches) 1 1 / 2 Bidet 1 1 / 4 Clothes washer standpipe 2 Dishwasher (on separate trap) 1 1 / 2 Floor drain 2 Kitchen sink (one or two traps, with or without dishwasher and garbage grinder) 1 1 / 2 Laundry tub (one or more compartments) 1 1 / 2 Lavatory 1 1 / 4 Shower 2 Water closet Note a For SI: 1 inch = 25.4 mm. a. Consult fixture standards for trap dimensions of specific bowls. FLORIDA BUILDING CODE RESIDENTIAL 32.1

54 INTERNATIONAL RESIDENTIAL CODE

55 CHAPTER 33 GENERAL REQUIREMENTS * SECTION E3301 GENERAL E Applicability. The provisions of NFPA 70A, National Electrical Code Requirements for One- and Two-Family Dwellings, except article 80, shall establish the general scope of the electrical system and equipment requirements of this code. NFPA 70A, National Electrical Code Requirements for One- and Two-Family Dwellings covers those wiring methods and materials most commonly encountered in the construction of one- and two-family dwellings and structures regulated by this code. Other wiring methods, materials and subject matter covered in the NFPA 70 are also allowed by this code. FLORIDA BUILDING CODE RESIDENTIAL 33.1

56 33.2 FLORIDA BUILDING CODE RESIDENTIAL

57 CHAPTER 34 Reserved FLORIDA BUILDING CODE RESIDENTIAL 34.1

58 34.2 FLORIDA BUILDING CODE RESIDENTIAL

59 CHAPTER 35 Reserved FLORIDA BUILDING CODE RESIDENTIAL 35.1

60 35.2 FLORIDA BUILDING CODE RESIDENTIAL

61 CHAPTER 36 Resered FLORIDA BUILDING CODE RESIDENTIAL 36.1

62 36.2 FLORIDA BUILDING CODE RESIDENTIAL

63 CHAPTER 37 Reserved FLORIDA BUILDING CODE RESIDENTIAL 37.1

64 CHAPTER 38 Reserved FLORIDA BUILDING CODE RESIDENTIAL 38.1

65 CHAPTER 39 Reserved FLORIDA BUILDING CODE RESIDENTIAL 39.1

66 CHAPTER 40 Reserved FLORIDA BUILDING CODE RESIDENTIAL 40.1

67 CHAPTER 41 SWIMMING POOLS R4101 Private Swimming Pools R Definitions - General R Tense, Gender and Number. For the purpose of this code, certain abbreviations, terms, phrases, words, and their derivatives shall be construed as set forth in this section. Words used in the present tense include the future. Words in the masculine gender include the feminine and neuter. Words in the feminine and neuter gender include the masculine. The singular number includes the plural and the plural number includes the singular. R Words Not Defined. Words not defined herein shall have the meanings stated in the Florida Building Code, Building; Florida Building Code, Mechanical; Florida Building Code, Plumbing; Florida Building Code, Fuel Gas; or Florida Fire Prevention Code. Words not defined in the Florida Building Code shall have the meanings stated in the Webster s Ninth New Collegiate Dictionary, as revised. R Definitions. ABOVEGROUND/ONGROUND POOL. (See Swimming Pool.) ADMINISTRATIVE AUTHORITY. The individual official, board, department or agency established and authorized by a state, county, city or other political subdivision created by law to administer and enforce the provisions of the swimming pool code as adopted or amended. APPROVED. Accepted or acceptable under an applicable specification stated or cited in this code, or accepted as suitable for the proposed use under procedures and power of the administrative authority. APPROVED SAFETY COVER. A manually or power-applied safety pool cover that meets all of the performance standards of the American Society for Testing and Materials (ASTM) in compliance with Standard F APPROVED TESTING AGENCY. An organization primarily established for the purpose of testing to approved standards and approved by the administrative authority. BACKWASH PIPING. See Filter Waste Discharge Piping. BARRIER. A fence, dwelling wall or non-dwelling wall or any combination thereof which completely surrounds the swimming pool and obstructs access to the swimming pool, especially access from the residence or from the yard outside the barrier. BODY FEED. Filter aid fed into a diatomite-type filter throughout the filtering cycle. CARTRIDGE FILTER. A filter using cartridge type filter elements. CHEMICAL PIPING. Piping which conveys concentrated chemical solutions from a feeding apparatus to the circulation piping. CIRCULATION PIPING SYSTEM. Piping between the pool structure and the mechanical equipment. Usually includes suction piping, face piping and return piping. COMBINATION VALVE. A multipart valve intended to perform more than one function. DESIGN HEAD. Total head requirement of the circulation system at the design rate of flow. DIATOMITE (DIATOMACEOUS EARTH). A type of filter aid. DIATOMITE TYPE FILTER. A filter designed to be used with filter aid. DIRECT ACCESS FROM THE HOME. Means any opening which discharges into the perimeter of the pool or any opening in an exterior dwelling wall, or interior wall (for indoor pools) which faces the pool. EXIT ALARM. A device that makes audible, continuous alarm sounds when any door or window which permits access from the residence to any pool that is without an intervening enclosure is opened or left ajar. FACE PIPING. Piping, with all valves and fittings, which is used to connect the filter system together as a unit. FILTER. Any apparatus by which water is clarified. FILTER AID. A non-permanent type of filter medium or aid such as diatomite, alum, etc. FILTER CARTRIDGE. A disposable or renewable filter element which generally employs no filter aid. FILTER ELEMENT. That part of a filter which retains the filter medium. FILTER MEDIUM. Fine material which entraps the suspended particles and removes them from the water. FILTER RATE. Average rate of flow per square foot of filter area. FILTER ROCK. Specially graded rock and gravel used to support filter sand. FILTER SAND. A specially graded type of permanent filter medium. FILTER SEPTUM. That part of the filter element in a diatomite type filter upon which a cake of diatomite or other non-permanent filter aid may be deposited. FILTER WASTE DISCHARGE PIPING. Piping that conducts waste water from a filter to a drainage system. Connection to drainage system is made through an air gap or other approved methods. FRESH WATER. Those waters having a specific conductivity less than a solution containing 6000 ppm of sodium chloride. FLORIDA BUILDING CODE RESIDENTIAL 41.1

68 SWIMMING POOLS HIGH RATE SAND FILTER. A sand filter designed for flows in excess of 5 gpm per sq ft. HOT TUB. (See Swimming Pool.) INGROUND POOL. (See Swimming Pool.) INLET FITTING. Fitting or fixture through which circulated water enters the pool. MAIN OUTLET. Outlet at the deep portion of the pool through which the main flow of water leaves the pool when being drained or circulated. MEDICALLY FRAIL ELDERLY PERSON. Means any person who is at least 65 years of age and has a medical problem that affects balance, vision, or judgment, including but not limited to a heart condition, diabetes, or Alzheimer s disease or any related disorder. CHILD SAFETY BARRIER. A combination of materials, including fabric, posts, and other hardware to form a barrier around a swimming pool. POOL. (See Swimming Pool.) POOL DEPTHS. The distance between the floor of pool and the maximum operating water level. POOL PERIMETER. A pool perimeter is defined by the limits of the pool deck, its surrounding area including yard area on same property, and any dwelling or non-dwelling wall or any combination thereof which completely surrounds the pool. POOL PLUMBING. All chemical, circulation, filter waste discharge piping, deck drainage and water filling system. PORTABLE POOL. A prefabricated pool which may be erected at the point of intended use and which may be subsequently disassembled and re-erected at a new location. Generally installed on the surface of the ground and without excavation. PRECOAT. In a diatomite-type filter, the initial coating or filter aid placed on the filter septum at the start of the filter cycle. RAPID SAND FILTER. A filter designed to be used with sand as the filter medium and for flows not to exceed 5 gpm per sq ft. RECEPTOR. An approved plumbing fixture or device of such material, shape and capacity as to adequately receive the discharge from indirect waste piping, so constructed and located as to be readily cleaned. RESIDENTIAL. Means situated on the premises of a detached one-family or two-family dwelling or a one-family townhouse not more than three stories high. RETURN PIPING. That portion of the circulation piping which extends from the outlet side of the filters to the pool. SALINE WATER. Those waters having a specific conductivity in excess of a solution containing 6000 ppm of sodium chloride. SEPARATION TANK. A device used to clarify filter rinse or waste water. Sometimes called a reclamation tank. SKIM FILTER. A surface skimmer combined with a vacuum diatomite filter. SPA, NONPORTABLE. (See Swimming Pool.) SPA, PORTABLE. Non-permanent structure intended for recreational bathing, in which all controls and water heating and water circulating equipment are an integral part of the product and which is cord-connected and not permanently electrically wired. SUCTION PIPING. That portion of the circulation piping located between the pool structure and the inlet side of the pump and usually includes main outlet piping, skimmer piping, vacuum piping and surge tank piping. SURFACE SKIMMER. A device generally located in the pool wall which skims the pool surface by drawing pool water over a self adjusting weir. SWIMMING POOL, PRIVATE. Any structure, located in a residential area, that is intended for swimming or recreational bathing and contains water over 24 inches deep including but not limited to inground, aboveground, and onground swimming pools, hot tubs, and non-portable spas. SWIMMING POOL, INDOOR. A swimming pool which is totally contained within a structure and surrounded on all four (4) sides by walls of said structure. SWIMMING POOL, OUTDOOR. Any swimming pool which is not an indoor pool. SWIMMING POOL, PUBLIC. A watertight structure of concrete, masonry, fiberglass, stainless steel or plastic which is located either indoors or outdoors, used for bathing or swimming by humans, and filled with a filtered and disinfected water supply, together with buildings, appurtenances and equipment used in connection therewith. A public swimming pool or public pool shall mean a conventional pool, spa-type pool, wading pool, special purpose pool or water recreation attraction, to which admission may be gained with or without payment of a fee and includes, pools operated by or serving camps, churches, cities, counties, day care centers, group home facilities for 8 or more clients, health spas, institutions, parks, state agencies, schools, subdivisions; or the cooperative living-type projects of 5 or more living units, such as apartments, boarding houses, hotels, mobile home parks, motels, recreational vehicle parks and townhouses. SWIMMING POOL, RESIDENTIAL. See Swimming Pool, Private. TURNOVER TIME. The time in hours required for the circulation system to filter and recirculate a volume of water equal to the pool volume. VACUUM FITTING. A fitting in the pool which is used as a convenient outlet for connecting the underwater suction cleaning equipment. VACUUM PIPING. The piping from the suction side of a pump connected to a vacuum fitting located at the pool and below the water level. WASTE PIPING. See Filter Waste Discharge Piping. WIDTH AND/OR LENGTH. Actual water dimension taken from wall to wall at the maximum operating water level. YOUNG CHILD. Means any person under the age of 6 years. R Mechanical Requirements. Unless otherwise specified in this code, all piping, equipment and materials used in the 41.2 FLORIDA BUILDING CODE RESIDENTIAL

69 SWIMMING POOLS plumbing system of swimming pools that are built in place shall conform to the Florida Building Code, Plumbing. R Approvals R Compliance. All materials, piping, valves, equipment or appliances entering into the construction of swimming pools or portions thereof shall be of a type complying with this code or of a type recommended and approved by a nationally recognized testing agency or conforming to other recognized standards acceptable to the administrative authority. R Items not covered. For any items not specifically covered in these requirements, the administrative authority is hereby authorized to require that all equipment, materials, methods of construction and design features shall be proven to function adequately, effectively and without excessive maintenance and operational difficulties. R Applicant responsibility. It shall be the responsibility of the applicant to provide such data, tests or other adequate proof that the device, material or product will satisfactorily perform the function for which it is intended, before such item shall be approved or accepted for tests. R Alternate Materials and Methods of Construction R Approval and authorization. The provisions of this code are not intended to prevent the use of any alternate material, method of construction, appliance or equipment, provided any such alternate has been first approved and its use authorized by the administrative authority. R Required tests. When there is insufficient evidence to substantiate claims for alternates, the administrative authority may require tests, as proof of compliance, to be made by an approved agency at the expense of the applicant. R Engineering Design. R Conformance standard. Design, construction and workmanship shall be in conformity with the requirements of ANSI/NSPI 3-99; ANSI/NSPI 4-99; ANSI/NSPI 5-03; and ANSI/NSPI R Required equipment. Every swimming pool shall be equipped complete with approved mechanical equipment consisting of filter, pump, piping valves and component parts. Exception: Pools with a supply of fresh water equivalent to the volume of the pool in the specified turnover time will be allowed. R Water velocity. Pool piping shall be designed so the water velocity will not exceed 10 ft/s for pressure piping and 8ft/s for suction piping, except that the water velocity shall not exceed 8 ft/s in copper tubing. Exception: Jet inlet fittings shall not be deemed subject to this requirement. R Piping to heater. Water flow through the heater, any bypass plumbing installed, any back-siphoning protection, and the use of heat sinks shall be done in accordance with the manufacturer s recommendations. R Piping installation. All piping materials shall be installed in strict accordance with the manufacturer s installation standards. Exception: Primer and glue on exposed aboveground piping not required to be colored. R Entrapment Protection for Suction Inlets. R Location. Suction inlets shall be provided and arranged to produce circulation throughout the pool or spa. R Testing and Certification. All pool and spa suction inlets shall be provided with a cover that has been tested and accepted by a recognized testing facility and comply with ANSI/ASME A M, Suction Fittings for Use in Swimming Pools, Spas, Hot Tubs, and Whirlpool Bathtub Appliances. Exceptions: 1. Surface skimmers. 2. Grate or grates having a minimum area of 144 sq. in. or greater. R Entrapment Avoidance. All pools and spas shall have a backup system which shall provide vacuum protection should grate covers become missing or inoperative with respect to their approved use. Vacuum protection devices shall consist of one of the following: 1. Approved Safety Vacuum Release System (SVRS) 2. Approved Vent piping 3. Other approved devices or means R Suction Inlets Per Pump. A minimum of two suction inlets shall be provided for each pump in the suction inlet system, separated by a minimum of 3 feet or located on two different planes; i.e., one on the bottom and one on the vertical wall, or one each on two separate vertical walls. These suction inlets shall be plumbed such that water is drawn through them simultaneously through a common line to the pump. When a skimmer is used in conjunction with a single main outlet to meet the requirements of this section, the common suction line must be in compliance with R such that a vacuum cannot be drawn on any single main outlet or skimmer. R Cleaner Fittings. Where provided, the vacuum or pressure cleaner fitting(s) shall be located in an accessible position(s) at least 6 inches and not greater than 12 inches below the minimum operating water level or as an attachment to the skimmer(s). All cleaner suction inlets shall be protected by an approved, permanently installed, self-closing flapper assembly. R Pumps. R Strainer. Pool circulating pumps shall be equipped on the inlet side with an approved type hair and lint strainer when used with a pressure filter. R Installation. Pumps shall be installed in accordance with manufacturer recommendations. FLORIDA BUILDING CODE RESIDENTIAL 41.3

70 SWIMMING POOLS R Capacity. Pumps shall have design capacity at the following heads. 1. Pressure Diatomaceous Earth - At least 60 ft. 2. Vacuum Diatomaceous Earth - 20 inch vacuum on the suction side and 40 ft total head. 3. Rapid Sand - At least 45 ft. 4. High Rate Sand - At least 60 ft. R Materials. Pump impellers, shafts, wear rings and other working parts shall be of corrosion-resistant materials. R Valves. R General. Valves shall be made of materials that are approved in the Florida Building Code, Plumbing. Valves located under concrete slabs shall be set in a pit having a least dimension of five pipe diameters with a minimum of at least 10 inches and fitted with a suitable cover. All valves shall be located where they will be readily accessible for maintenance and removal. R Full-Way (gate) valves. Full-way valves shall be installed to insure proper functioning of the filtration and piping system. When the pump is located below the overflow rim of the pool, a valve shall be installed on the discharge outlet and the suction line. R Check valves. Where check valves are installed they shall be of the swing, spring or vertical check patterns. R Combination valves. Combination valves shall require approval of the administrative authority prior to their installation. R Water supply. Unless an approved type of filling system is installed, any water supply which in the judgment of the administrative authority may be used to fill the pool, shall be equipped with backflow protection. No over the rim fill spout shall be accepted unless located under a diving board, or properly guarded. R Waste water disposal. R Connection limitations. Direct or indirect connections shall not be made between any storm drain, sewer, drainage system, seepage pit underground leaching pit, or sub-soil drainage line, and any line connected to a swimming pool unless approved by the administrative authority. R Disposal through public sewer. When the waste water from a swimming pool is to be disposed of through a public sewer, a 3 inch P-trap shall be installed on the lower terminus of the building drain and the tall piece from the trap shall extend a minimum of 3 inches above finished grade and below finished floor grade. This trap need not be vented. The connection between the filter waste discharge piping and the P-trap shall be made by means of an indirect connection. R Deviations. Plans and specifications for any deviation from the above manner of installation shall first be approved by the administrative authority before any portion of any such system is installed. When waste water disposal is to seepage pit installation, it shall be installed in accordance with the approval granted by the administrative authority. R Separation tank. A separation tank of an approved type may be used in lieu of the aforementioned means of waste water disposal when connected as a reclamation system. R Tests. R Pressure test. All pool piping shall be tested and proved tight to the satisfaction of the administrative authority, under a static water or air pressure test of not less than 35 psi for 15 minutes. Exception: Circulating pumps need not be tested as required in this section. R Drain and waste piping. All drain and waste piping shall be tested by filling with water to the point of overflow and all joints shall be tight. R Drain Piping. R Slope to discharge. Drain piping serving gravity overflow gutter drains and deck drains shall be installed to provide continuous grade to point of discharge. R Joints and connections. Joints and connections shall be made as required by the Florida Building Code, Plumbing. R Water Heating Equipment. R Labels. Swimming pool water heating equipment shall conform to the design, construction and installation requirements in accordance with accepted engineering practices and shall bear the label of a recognized testing agency, and shall include a consideration of combustion air, venting and gas supply requirements for water heaters. R Water retention. If a heater is not equipped or designed for an approved permanent by-pass or anti-siphon device, an approved permanent by-pass or anti-siphon device shall be installed to provide a positive means of retaining water in the heater when the pump is not in operation. R Pit Drainage. When the heater is installed in a pit, the pit shall be provided with approved drainage facilities. R Connections. All water heating equipment shall be installed with flanges or union connection adjacent to the heater. R Relief valve. When water heating equipment which is installed in a closed system has a valve between the appliance and the pool, a pressure relief valve shall be installed on the discharge side of the water heating equipment. For units up to and including 200,000 Btu/hour input, the relief valve shall be rated by the American Gas Association. R Gas Piping. Gas piping shall comply with the Florida Building Code, Fuel Gas. R Electrical. Electrical wiring and equipment shall comply with Chapter 27 of the Florida Building Code. R Residential Swimming Barrier Requirement. Residential swimming pools shall comply with R through R FLORIDA BUILDING CODE RESIDENTIAL

71 SWIMMING POOLS Exception: A swimming pool with an approved safety pool cover complying with ASTM F R Outdoor Swimming Pools. Outdoor swimming pools shall be provided with a barrier complying with R through R R The top of the barrier shall be at least 48 inches above grade measured on the side of the barrier which faces away from the swimming pool. The maximum vertical clearance between grade and the bottom of the barrier shall be 2 inches measured on the side of the barrier which faces away from the swimming pool. Where the top of the pool structure is above grade the barrier may be at ground level or mounted on top of the pool structure. Where the barrier is mounted on top of the pool structure, the maximum vertical clearance between the top of the pool structure and the bottom of the barrier shall be 4 inches. R The barrier may not have any gaps, openings, indentations, protrusions, or structural components that could allow a young child to crawl under, squeeze through, or climb over the barrier as herein described below. One end of a removable child barrier shall not be removable without the aid of tools. Openings in any barrier shall not allow passage of a 4-inch diameter sphere. R Solid barriers which do not have openings shall not contain indentations or protrusions except for normal construction tolerances and tooled masonry joints. R Where the barrier is composed of horizontal and vertical members and the distance between the tops of the horizontal members is less than 45 inches, the horizontal members shall be located on the swimming pool side of the fence. Spacing between vertical members shall not exceed 1-3/4 inches in width. Where there are decorative cutouts within vertical members, spacing within the cutouts shall not exceed 1-3/4 inches in width. R Where the barrier is composed of horizontal and vertical members and the distance between the tops of the horizontal members is 45 inches or more, spacing between vertical members shall not exceed 4 inches. Where there are decorative cutouts within vertical members, spacing within the cutouts shall not exceed 1-3/4 inches in width. R Maximum mesh size for chain link fences shall be a 2-1/4 inch square unless the fence is provided with slats fastened at the top or bottom which reduce the openings to no more than 1-3/4 inches. R Where the barrier is composed of diagonal members, the maximum opening formed by the diagonal members shall be no more than 1-3/4 inches. R Access gates, when provided, shall be self-closing and shall comply with the requirements of side of the gate and so placed that it cannot be reached by a young child over the top or through any opening or gap from the outside. Gates that provide access to the swimming pool must open outward away from the pool. The gates and barrier shall have no opening greater than 1/2 inch within 18 inches of the release mechanism. R Where a wall of a dwelling serves as part of the barrier, one of the following shall apply: 1. All doors and windows providing direct access from the home to the pool shall be equipped with an exit alarm complying with UL 2017 that has a minimum sound pressure rating of 85 db A at 10 feet and is either hardwired or of the plug-in type. The exit alarm shall pro-duce a continuous audible warning when the door and its screen are opened. The alarm shall sound immediately after the door is opened and be capable of being heard throughout the house during normal household activities. The alarm shall be equipped with a manual means to temporarily deactivate the alarm for a single opening. Such deactivation shall last no more than 15 seconds. The deactivation switch shall be located at least 54 inches above the thresh-old of the door. Separate alarms are not required for each door or window if sensors wired to a central alarm sound when contact is broken at any opening. Exceptions: a. Screened or protected windows having a bottom sill height of 48 inches or more measured from the interior finished floor at the pool access level. b. Windows facing the pool on floor above the first story. c. Screened or protected pass-through kitchen windows 42 inches or higher with a counter beneath. 2. All doors providing direct access from the home to the pool must be equipped with a self-closing, self-latching device with positive mechanical latching/locking installed a minimum of 54 inches above the threshold, which is approved by the authority having jurisdiction. R Where an aboveground pool structure is used as a barrier or where the barrier is mounted on top of the pool structure, and the means of access is a ladder or steps, the ladder or steps either shall be capable of being secured, locked or removed to prevent access, or the ladder or steps shall be surrounded by a barrier which meets the requirements of R through R and R through R When the ladder or steps are secured, locked or removed, any opening created shall not allow the passage of a 4 inch diameter sphere. R through R and shall be equipped with a self-latching locking device located on R Standard screen enclosures which meet the pool side of the gate. Where the device release is located no less than 54 inches from the bottom of the gate, or all of the barrier and shall be considered a the requirements of R may be utilized as part of the device release mechanism may be located on either non-dwelling wall. Removable child barriers shall FLORIDA BUILDING CODE RESIDENTIAL 41.5

72 SWIMMING POOLS have one end of the barrier nonremovable without the aid of tools. R The barrier must be placed around the perimeter of the pool and must be separate from any fence, wall, or other enclosure surrounding the yard unless the fence, wall, or other enclosure or portion thereof is situated on the perimeter of the pool, is being used as part of the barrier, and meets the barrier requirements of this section. R Removable child barriers must be placed sufficiently away from the water s edge to prevent a young child or medically frail elderly person who may manage to penetrate the barrier from immediately falling into the water. Sufficiently away from the water s edge shall mean no less than 20 inches from the barrier to the water s edge. Dwelling or non-dwelling walls including screen enclosures, when used as part or all of the barrier and meeting the other barrier requirements, may be as close to the water s edge as permitted by this code. R A wall of a dwelling may serve as part of the barrier if it does not contain any door or window that opens to provide direct access from the home to the swimming pool. R Adjacent Waterways. Permanent natural or permanent man-made features such as bulkheads, canals, lakes, navigable waterways, etc., adjacent to a public or private swimming pool or spa may be permitted as a barrier when approved by the authority having jurisdiction. When evaluating such barrier features, the authority may perform on-site inspections and review evidence such as surveys, aerial photographs, water management agency standards and specifications, and any other similar documentation to verify, at a minimum, the following: 1. The barrier feature is not subject to natural changes, deviations, or alterations and is capable of providing an equivalent level of protection as that provided by the code. 2. The barrier feature clearly impedes, prohibits or restricts access to the swimming pool or spa. R A child safety barrier meeting the requirements of R and the following minimum requirements shall be considered a barrier as defined in this section: 1. Individual component vertical support posts shall be capable of resisting a minimum of fifty-two (52) pounds of horizontal force prior to breakage when measured at a thirty-six (36) inch height above grade. Vertical posts of the child mesh safety barrier shall extend a minimum of three (3) inches below deck level and shall be spaced no greater than thirty-six (36) inches apart. 2. The mesh utilized in the barrier shall have a minimum tensile strength according to ASTM D of 100 lbf., and a minimum ball burst strength according to ASTM D of 150 lbf. The mesh shall not be capable of deformation such that a 1/4" round object could pass through the mesh. The mesh shall receive a descriptive performance rating of no less than trace discoloration or slight discoloration when tested according to ASTM G53-96 (Weatherability, 1200 hours). 3. When using a molding strip to attach the mesh to the vertical posts, this strip shall contain, at a minimum, #8 x 1/2" screws with a minimum of two screws at the top and two at the bottom with the remaining screws spaced a maximum of six (6) inches apart on center. 4. Patio deck sleeves (vertical post receptacles) placed inside the patio surface shall be of a nonconductive material. 5. A latching device shall attach each barrier section at a height no lower than forty-five (45) inches above grade. Common latching devices that include, but are not limited to, devices that provide the security equal to or greater than that of a hook and eye type latch incorporating a spring actuated retaining lever. (Commonly referred to as a safety gate hook.) 6. The bottom of the child mesh safety barrier shall not be more than one (1) inch above the deck or installed surface (grade). R Indoor swimming pools. All walls surrounding indoor swimming pools shall comply with R R Prohibited locations. A barrier may not be located in a way that allows any permanent structure, equipment, or window that opens to provide access from the home to the swimming pool. R Ladders and Steps. All pools whether public or private shall be provided with a ladder or steps in the shallow end where water depth exceeds 24 inches. In private pools where water depth exceeds 5 ft, there shall be ladders, stairs or underwater benches/swimouts in the deep end. Where manufactured diving equipment is to be used, benches or swimouts shall be recessed or located in a corner. Exception: In private pools having more than one shallow end, only one set of steps are required. A bench, swim-out or ladder may be used at all additional shallow ends in lieu of an additional set of steps. R Final Inspection. All swimming pool installations must be completed. The pool shall be completely filled with water and in operation before final inspection. R Filters. The entire design of matched components shall have sufficient capacity to provide a complete turnover of pool water in 12 hours or less. R Sand Filters. R Approved types. Rapid sand filters (flow up to 5 gpm/sq ft) shall be constructed in accordance with approved standards. Where high rate sand filters (flow in excess of 5 gpm/sq ft) are used, they shall be of an approved type. The circulation system and backwash pip FLORIDA BUILDING CODE RESIDENTIAL

73 SWIMMING POOLS ing shall be adequate for proper backwashing of said filter and shall provide backwash flow rates of at least 12 gpm/sq ft for rapid sand filters or 15 gpm/sq ft for high rate sand filters. R Instructions. Every filter system shall be provided with written operating instructions. R Filter system equipment. On pressure type filters, a means shall be provided to permit the release of internal pressure. A filter incorporating an automatic internal air release as its principal means of air release shall have lids which provide a slow and safe release of pressure as part of its design. A separation tank used in conjunction with a filter tank shall have as part of its design a manual means of air release or a lid which provides a slow and safe release of pressure as it is opened. R Diatomite Type Filters. R Design. Diatomite-type filters shall be designed for operation under either pressure or vacuum. The design capacity for both pressure and vacuum filters shall not exceed 2 gpm/sq ft of effective filter area. R Filter aid. Provision shall be made to introduce filter aid into the filter in such a way as to evenly precoat the filter septum. R Pool Fittings. R Approved type. Pool fittings shall be of an approved type and design as to be appropriate for the specific application. R Skimmers. Approved surface skimmers are required and shall be installed in strict accordance with the manufacturer s installation instructions. Skimmers shall be installed on the basis of one per 800 sq ft of surface area or fraction thereof, and shall be designed for a flow rate of at least 25 gpm per skimmer. R Main outlet. An approved main outlet, when provided, shall be located on a wall or floor at or near the deepest point in the pool for emptying or circulation, or both, of the water in the pool. R Hydrostatic relief device. In areas of anticipated water table an approved hydrostatic relief device shall be installed. Exception: Plastic liner pools (where there is no structural bottom to the pool). R Inlet fittings. Approved manufactured inlet fittings for the return of recirculated pool water shall be provided on the basis of at least one per 300 sq ft of surface area. Such inlet fittings shall be designed and constructed to insure an adequate seal to the pool structure and shall incorporate a convenient means of sealing for pressure testing of the pool circulation piping. Where more than one inlet is required, the shortest distance between any two required inlets shall be at least 10 ft. R Equipment Foundations And Enclosures. All pool motors and equipment shall be installed in compliance with the manufacturers recommendations. All heating and electrical equipment, unless approved for outdoor installation, shall be adequately protected against the weather or installed within a building. R Accessibility and Clearances. Equipment shall be so installed as to provide ready accessibility for cleaning, operating, maintenance and servicing. FLORIDA BUILDING CODE RESIDENTIAL 41.7

74 41.8 FLORIDA BUILDING CODE RESIDENTIAL

75 CHAPTER 42 Reserved FLORIDA BUILDING CODE RESIDENTIAL 42.1

76 42.2 FLORIDA BUILDING CODE RESIDENTIAL