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2 WELCOME Welcome! Timewell Drainage Products is proud to serve you with the most complete line of drainage products available from any manufacturer in the industry. As a family owned and operated business, we understand your need for competitive pricing, products you count on and service to match. Thank you for considering Timewell Drainage Products. 2 Timewell

3 TABLE OF CONTENTS MaXflo HDPE Dual Wall Pipe Retention/Detention Connections and Fittings Specialty Accessories Industry Relationships 4-5 MaXflo AASHTO Pipe 6 MaXflo AASHTO Pipe Specifications 7 MaXflo AE Pipe STORMWATER MANAGEMENT 8-9 Products, Services and Accessories 10 Installation Overview 11 Containment Values MAXFLO FITTING AND CONNECTIVE OPTIONS 12 Soil Tight and Water Tight Couplers 13 Bends and Tees 14 Reducing Tees 15 Reducers and Wyes 16 Saddle Tees, HDPE Drain Basins and HDPE/Metal Flared End Sections 17 Outlet Protection, Mitered HDPE End Sections, Meter Pits, Linear Drain and Support items 18 Timewell Affiliations PVC Drain Basins and Accessories PVC Drain Basins 20 Inlet Filters 21 Inline Drains/Grates and Lids 22 Clean Outs, HDPE to PVC Adaptors, HDPE to PVC Manhole Adaptors and Qwikseal Single Wall Corrugated Pipe Single Wall Fittings Residential Drainage Installation Ordering About Timewell 23 Specifications 24 Types of Single Wall 25 Configurations 26 Adaptors, Elbows, External Split Couplers and External Snap Couplers 27 Tees and Wyes 28 End Caps, Internal Couplers and Reducers 29 Sump Pits & Lids, Animal Guards and Bar Guards 30 Riser Inlets 31 Catch Basins, Emitters and Channel Drain Pipe Installation Procedures 34 Truckload Worksheet 35 Timewell History Timewell 3

4 fi x p s r MAXFLO HDPE DUAL WALL PIPE MaXflo is a superior corrugated HDPE pipe with smooth interior designed for gravity flow storm sewer, retention/detention and other high capacity drainage applications. SPECIFICATIONS Timewell participates in and complies to all production standards set forth by the National Transportation Product Evaluation Program. Pipe shall comply with requirements for test methods, dimensions and markings found in AASHTO designations M252 Type S & M294 Type S. JOINTS The MaXflo Bell-and-Spigot joint system provides superior load-bearing capability and improved hydraulics. MaXflo is supplied with an elastomeric gasket meeting the requirements of ASTM F477. The Bell-and-Spigot joint with gasket is tested to ASTM D3212 standards for watertight joint requirements. When applicable, plain end pipe utilizing a wrap around coupler is available. FITTINGS Fittings conform to AASHTO M252 or M294. Fittings can be molded or fabricated. Common fittings are branch fittings such as wyes, tees, and end caps as well as in-line joint fittings like couplers and reducers. Couplers must provide adequate strength to maintain pipe alignment and prevent separation. Timewell offers soil tight and water tight options for fitting connections. See page 12 for details. AASHTO DUAL WALL PIPE Nominal Diameter DUAL WALL PIPE Part Number Configuration S MaXflo 4 Belled S MaXflo 6 Belled S MaXflo 8 Belled S MaXflo 10 Belled S MaXflo 12 Bell/Spigot PE / PE MaXflo 12 Plain End S MaXflo 15 Bell/Spigot PE / PE MaXflo 15 Plain End S MaXflo 18 Bell/Spigot PE / PE MaXflo 18 Plain End S MaXflo 24 Bell/Spigot PE / PE MaXflo 24 Plain End S MaXflo 30 Bell/Spigot PE / PE MaXflo 30 Plain End S MaXflo 36 Bell/Spigot PE / PE MaXflo 36 Plain End S MaXflo 42 Bell/Spigot S MaXflo 48 Bell/Spigot S MaXflo 60 Bell/Spigot MANNING S n VALUES (Coefficient of Roughness) Product Diameter Mannings n Value Timewell MaXflo* Inside Diameter (Average) Outside Diameter (Average) Minimum Pipe Stiffness at 5% Deflection * Timewell Drainage Products recommends the use of a Manning s n value of Weight (lbs./20ft.) psi 9.02lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi lbs psi 1, lbs 4 Timewell

5 photos. sent you on 1/31/12 of the jobsite I images the of one with replace MAXFLO HDPE DUAL WALL PIPE Bell/Spigot Connection 12, 15, 18, 24 HDPE PIPE 30, 36, 48 HDPE PIPE DUAL WALL FEATURES: In-Line Bell Design Water tight joints available on 20 sticks with ASTM F477 gaskets High performance bell/spigot design for superior connective strength All MaXflo bells cover a minimum of two ribs All pipe meets or exceeds AASHTO M252S and M294S TIMEWELL MaXflo Pipe meets or exceeds numerous industry standards including: AASHTO M252 AASHTO M294 ASTM F405 ASTM F667 ASTM D3350 ASTM D2321 ASTM D3212 ASTM F477 ASTM F2306 ASTM F2648 NTPEP Requirements and testing for 3-10 pipe, couplings and fittings for use in subsurface drainage systems, storm sewers, and in surface drainage Requirements and testing for pipe, couplings and fittings for use in surface and subsurface drainage applications Requirements and testing 3-6 pipe and fittings for materials, marking dimensions, workmanship, elongation, brittleness, pipe stiffness, and perforations Requirements and testing for 8-24 pipe and fittings for materials, workmanship, dimensions, perforations, pipe stiffness, elongation, joint separation resistance, quality of extrusion, brittleness, bond, and markings Identification of pipe and fitting materials in accordance with a cell classification system Recommendations for the installation of pipe used in sewers and other gravity-flow applications Specifications for joints of pipe systems intended for drain, and gravity sewerage at internal or external pressures less than 25 ft head using flexible watertight elastomeric seals Requirements for elastomeric seals (gaskets) used to seal the joints of pipe used for gravity, low-pressure, and high-pressure applications Requirements for non-pressure (gravity flow) 8-60 annular corrugated profile-wall polyethylene (PE) pipe and fittings for gravity-flow storm sewer and subsurface draingae applications Requirements for non-pressure (gravity flow) 2-60 pipe and fittings suitable for underground use for subsurface and land drainage systems which do not operate under surcharge pressure heads National Transportation Product Evaluation Program Certified: Certification Program of AASHTO (4-60 ) Timewell 5

6 i A TM MAXFLO HDPE DUAL WALL PIPE TIMEWELL MaXflo pipe meets or exceeds numerous industry standards including: AASHTO M252 AASHTO M294 NTPEP ASTM F405 Requirements and testing for 3-10 tubing, couplings and fittings for use in subsurface drainage systems, storm sewers, and in surface drainage Referenced standards under AASHTO M252 - ASTM D618 - ASTM D ASTM D883 - ASTM D ASTM D ASTM F405 - ASTM D ASTM F412 Requirements and testing for pipe, couplings and fittings for use in surface and subsurface drainage applications Referenced standards under AASHTO M294 - ASTM D618 - ASTM D ASTM D883 - ASTM D ASTM D ASTM D ASTM D ASTM F667 - AASHTO Standard Specification for Highway Bridges National Transportation Product Evaluation Program Certified: Certification Program of AASHTO (4-60 ) Requirements and testing 3-6 pipe and fittings for materials, marking dimensions, workmanship, elongation, brittleness, pipe stiffness, and perforations ASTM F667 ASTM D3350 ASTM D2321 ASTM D3212 ASTM F477 ASTM F2306 ASTM F2648 Requirements and testing for 8-24 pipe and fittings for materials, workmanship, dimensions, perforations, pipe stiffness, elongation, joint separation resistance, quality of extrusion, brittleness, bond, and markings Identification of pipe and fitting materials in accordance with a cell classification system Recommendations for the installation of pipe used in sewers and other gravity-flow applications Specifications for joints of pipe systems intended for drain, and gravity sewerage at internal or external pressures less than 25 ft head using flexible watertight elastomeric seals Requirements for elastomeric seals (gaskets) used to seal the joints of pipe used for gravity, low-pressure, and high-pressure applications Requirements for non-pressure (gravity flow) annular corrugated profile-wall polyethylene (PE) pipe and fittings for gravity-flow storm sewer and subsurface draingae applications Requirements for non-pressure (gravity flow) 2-60 pipe and fittings suitable for underground use for subsurface and land drainage systems which do not operate under surcharge pressure heads 6 Timewell

7 Green Projects Ideally suited for and degradation Resistant to corrosion and custom fittings Full offering of standard spigot coupling system In-Line Watertight bell and Green Product High performance LEED requirements product to help you meet MAXFLO AE qualifies a meet LEED Requirements! ideal material you help to product recycled 40% of minimum AASHTO the is It ASTM and M294 and BENEFITS: AND M252 a including material HDPE of blend Engineered APPLICATIONS FEATURES AE of requirements strength the exceeds AE MAXFLO standards: following the meets Pipe AE MaXflo TIMEWELL MAXFLO HDPE DUAL WALL PIPE AE PIPE AE FEATURES AND BENEFITS: MAXFLO AE meets or exceeds the strength requirements of AASHTO M252 and M294 and ASTM It is the ideal product to help you meet LEED Requirements! MAXFLO AE PIPE Part Number Configuration AE MaXflo 4 Belled AE MaXflo 6 Belled AE MaXflo 8 Belled AE MaXflo 10 Belled AE / AE MaXflo 12 Bell/Spigot 15 ASTM F AE / AE MaXflo 15 Bell/Spigot AE / AE MaXflo 18 Bell/Spigot ASTM AE Pipe and Fittings / AE for Land Drainage MaXflo Applications 24 Bell/Spigot AE MaXflo 30 Bell/Spigot AE MaXflo 36 Bell/Spigot AE MaXflo 48 Bell/Spigot Standard Specification for Annular Corrugated Profile Wall Polyethylene Pipe and Fittings for Gravity Flow Storm Sewer and Subsurface Drainage Applications Standard Specification for 2 60 Annular Corrugated Profile Wall Polyethylene (PE) * AASHTO M 294 Standard Specification for Corrugated Polyethylene Pipe, * AASHTO M 252 Standard Specification for Corrugated Polyethylene Pipe, 3 10 ASTM F 477 ASTM D 3212 ASTM D3212 ASTM F 2306 ASTM 2648 Standard Specification for Elastomeric Seals for Joining Plastic Pipe Standard Specification for Joints for Drain and Sewer Plastic Pipe Using Flexible Elastomeric Seals *Meets (Coefficient all requirements of Roughness) for this standard except the use of virgin resin materials Standard Specification for Annular Corrugated Profile Wall Polyethylene Pipe and Fittings for Gravity Flow Storm Sewer and Subsurface Drainage Applications Standard Specification for 2 60 Annular Corrugated Profile Wall Polyethylene (PE) Pipe and Fittings for Land Drainage Applications * AASHTO M 294 Standard Specification for Corrugated Polyethylene Pipe, * AASHTO M 252 Standard Specification for Corrugated Polyethylene Pipe, 3 10 ASTM F 477 ASTM D 3212 ASTM D3212 MANNING S n VALUES Product Diameter Mannings n Value Timewell MaXflo* *Timewell Drainage Products recommends the use of a Manning s n value of TIMEWELL MaXflo AE Pipe meets the following standards: Standard Specification for Elastomeric Seals for Joining Plastic Pipe Standard Specification for Joints for Drain and Sewer Plastic Pipe Using Flexible Elastomeric Seals *Meets all requirements for this standard except the use of virgin resin materials Engineered blend of HDPE material including a minimum of 40% recycled material MAXFLO AE qualifies as a product to help you meet LEED requirements High performance Green Product In-Line Watertight bell and spigot coupling system Full offering of standard and custom fittings Resistant to corrosion and degradation Ideally suited for Green Projects APPLICATIONS Storm Sewer Highway Drainage Parking Lot Drainage Storm Water Detention/Retention Systems Industrial Applications Ditch Enclosures Commercial Applications Timewell offers soil tight and water tight options for fitting connections. See page 12 for details Timewell 7

8 RETENTION/DETENTION Timewell provides a complete line of Retention/Detention products. Our team can design, specify and build the right system to fit your water management needs. Timewell s MaXflo Systems are available in solid and perforated where specified. Timewell also offers a complete line of storm water chambers. Timewell offers a complete line of hydrodynamic separators and storm water quality units. Ask your sales representative for details. 8 Timewell

9 RETENTION/DETENTION TYPICAL RETENTION/DETENTION COMPONENTS Unit 24 Access Riser ea. 6 Manifold Clean-out ea. 8 Manifold Clean-out ea. 12 Inlet/Outlet Stub ea. 15 Inlet/Outlet Stub ea. 18 Inlet/Outlet Stub ea. 24 Inlet/Outlet Stub ea. Other specialty and custom designed components available along with design assistance. 48" MaXflo HDPE MANIFOLD 48" MaXflo HDPE MANIFOLD Timewell s Auto CAD design team can work with you to create the right plans for your project. Timewell can provide both standard and three dimensional drawings for you and your clients. Timewell s systems can be designed with standard, plain end connections or labor saving bell/spigot connections. HANNIBAL SCHOOLS 36" DETENTION SYSTEM HANNIBAL, MO 22" SPACING A. 6" CLEANOUTS B. 15" INLET - TOP OF SYSTEM INVERT C. 10" OUTLET - FLOWLINE: W/ 10"X15" ECCENTRIC REDUCER D. 24" SURFACE INLET/ACCESS RISER W/ DOMED GRATE E. SEAL-TITE COUPLER ST OR WT HANNIBAL SCHOOLS 36" DETENTION SYSTEM HANNIBAL, MO Timewell 9

10 RETENTION/DETENTION TIMEWELL UNDERGROUND DETENTION SYSTEMS: FEATURES & BENEFITS Timewell s Underground Detention Systems are highly efficient and provide a cost-effective way to store storm water. Manufactured out of strong, durable, HDPE pipe and fittings. Customizable layout designs can be tailored to specific jobsite concerns. - Maintains an AASHTO H-25 and HS-25 load rating - Available up to 60 in diameter - Optional perforations allow stone void volume to be calculated as storage - Optional risers allow man-entry and easy cleanout - Custom fabricated double and triple manifolds are available - Detention tools are available for calculating the amount of pipe needed for desired storage (including perforated systems) GENERAL INSTALLATION PROCEDURES Detention Systems shall be installed in accordance with the latest edition of ASTM D2321 and Timewell s installation guidelines. FOUNDATION: Unsuitable trench bottoms or unyielding material shall be excavated to a depth directed by the engineer and replaced with suitable material. Geotextile may be used to stabilize the trench bottom, if directed by the engineer. BEDDING: Minimum bedding depth shall be 4. Material shall be Class I or II, as specified by ASTM D2321. INITIAL BACKFILL: Initial backfill material shall be Class 1 or 2 material as specified by AASHTO D2321 and extend to not less than 6 above the top of the pipe. Compaction and backfill shall be in accordance with ASTM D2321. FINAL BACKFILL: Suitable materials shall be directed by the engineer for use in non-traffic applications. Areas subjected to traffic require 12 of compaction, and a separation layer of non-woven geotextile may be required. Compaction levels shall be specified at the discretion of the design engineer. MINIMUM COVER: For H-25 traffic applications a minimum cover of 12 for pipe up to 36 diameter, 24 for sizes 42 through 60 diameter must be used. Minimum cover is measured from the top of the pipe to bottom of flexible pavement or to the top of rigid pavement. Additional cover may be required for construction loads, for vehicles over 75 tons or to prevent flotation. Minimum cover for green areas is 12 for all sizes. ENVIRONMENTAL IMPACT: Timewell provides underground detention systems that have positive environmental impacts. These systems can serve as a integral part of your project s Best Management Practices. Our perforated detention systems can allow for percolation into the soil for groundwater recharge, or solid, containing the storm event for a controlled release into a municipal storm sewer. Timewell s underground systems are closed, mitigating and decreasing the health risks and thermal impacts associated with open water storage. Timewell s total approach provides developers a valuable tool to gain land for parking or green areas for ascetic enhancement. 10 Timewell

11 RETENTION/DETENTION TYPICAL RETENTION/DETENTION CROSS SECTION MINIMUM COVER HEIGHT FOR GRASS AREA D : = 12 FOR ALL SIZES. STORAGE CAPACITIES OF MAXFLO Nominal Inside Diameter Average Outside Diameter A Spacing A B Spacing A C Spacing Pipe Volume B Stone Void Volume C Total Retention Storage Retention Surface Area Required Detention Surface Area Required in. in. in. in. in. ft 3 /ft ft 3 /ft ft 3 /ft ft 2 /ft 3 ft 2 /ft 3 (mm) (mm) (mm) (mm) (mm) (m/m) (m 3 /m) (m 3 /m) (m 2 /m 3 ) (m 2 /m 3 ) (300) (368) (280) (650) (210) (0.07) (0.08) (0.15) (4.2) (8.6) (375) (457) (270) (730) (210) (0.11) (0.10) (0.21) (3.5) (6.4) (450) (533) (320) (870) (230) (0.16) (0.13) (0.29) (3.0) (5.4) (600) (711) (340) (1050) (260) (0.29) (0.18) (0.47) (2.2) (3.6) (750) (914) (460) (1390) (460) (0.46) (0.28) (0.74) (1.8) (3.0) (900) (1067) (510) (1570) (460) (0.66) (0.39) (1.05) (1.5) (2.4) (1050) (1219) (610) (1830) (460) (0.87) (0.53) (1.40) (1.3) (2.1) (1200) (1372) (610) (1830) (460) (1.15) (0.62) (1.77) (1.1) (1.7) (1500) (1702) (610) (2290) (460) (1.79) (0.78) (2.57) (0.89) (1.3) Typical cross section used in volume calculations. Bedding depth assumed 4 for pipe and 6 for pipe. Stone Porosity assumed 40%. Stone height above pipe crown not included in void volume calculations. Calculation is based on the average Outside Diameter of the pipe. For Perforated Systems Follow Engineers Recommendation for Aggregate Timewell 11

12 MAXFLO COUPLERS MAXFLO FITTING CONNECTION OPTIONS SOIL TIGHT EXTERNAL SPLIT COUPLERS SP SP SP SP SP SP SP 12 ea SP 15 ea SP 18 ea SP 24 ea SP 30 ea SP 36 ea SP 42 ea SP 48 ea SP SOIL TIGHT EXTERNAL SNAP COUPLERS SN SN SN SN MAR MAC COUPLERS 4 ea MRC 6 ea MRC 8 ea MRC 10 ea MRC 12 ea MRC 15 ea MRC 18 ea MRC 24 ea MRC 30 ea MRC 36 ea MRC 42 ea MRC 48 ea MRC 60 ea MRC Seal Tight for D3212 Water Tight Connections WATER TIGHT SEAL TITE COUPLERS Part Number ST STWT ST STWT ST STWT ST STWT ST STWT ST STWT ST STWT ST STWT ST STWT ST STWT Available with or without Stainless Steel tightening bands. WATER TIGHT INJECTION MOLDED BELLS Unit 6 ea. 8 ea. 10 ea. 12 ea. 15 ea. 18 ea. Valley Gaskets for in field cuts included with each fitting with injection molded bells. 12 Timewell

13 MAXFLO PLAIN END FITTINGS MAXFLO 22.5 DEGREE ELBOWS Part Number MAXFLO 45 DEGREE ELBOWS Part Number MAXFLO 90 DEGREE ELBOWS Part Number MAXFLO TEES Part Number 4 x T 6 x T 8 x T 10 x T 12 x T 15 x T 18 x T 24 x T 30 x T 36 x T 42 x T 48 x T 60 x T Timewell 13

14 MAXFLO PLAIN END FITTINGS MAXFLO REDUCING TEES Part Number 6 x T 8 x T 8 x T 10 x T 10 x T 10 x T 12 x T 12 x T 12 x T 12 x T 15 x T 15 x T 15 x T 15 x T 15 x T 18 x T 18 x T 18 x T 18 x T 18 x T 18 x T 24 x T 24 x T 24 x T 24 x T 24 x T 24 x T 24 x T 30 x T 30 x T 30 x T 30 x T 30 x T 30 x T 30 x T 30 x T MAXFLO REDUCING TEES Part Number 36 x T 36 x T 36 x T 36 x T 36 x T 36 x T 36 x T 36 x T 36 x T 42 x T 42 x T 42 x T 42 x T 42 x T 42 x T 42 x T 42 x T 42 x T 42 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T 48 x T CENTER-LINE AND FLOW-LINE CONFIGURATIONS AVAILABLE 60 Fittings Available 14 Timewell

15 MAXFLO PLAIN END FITTINGS MAXFLO REDUCERS /Part Number 6 x R 8 x 6 / R/4R 10 x 8 /6 / R/6R/4R 12 x 10 /8 /6 / R/8R/6R/4R 15 x 12 /10 /8 /6 / R/10R/8R/6R/4R 18 x 15 /12 /10 /8 /6 / R/12R/10R/8R/6R/4R 24 x 18 /15 /12 /10 /8 /6 / R/15R/12R/10R/8R/6R/4R 30 x 24 /18 /15 / R/18R/15R/12R 36 x 30 /24 /18 /15 / R/24R/18R/15R/12R 42 x 36 /30 /24 /18 /15 / R30R/24R/18R/15R/12R 48 x 42 /36 /30 /24 /18 /15 / R/36R/30R/24R/18R/15R/12R 60 Reducers Available MAXFLO WYES Part Number Y Y Y Y Y Y Y Y 24 and Larger Wyes are Available MAXFLO REDUCING WYES Part Number 6 x Y 8 x Y 8 x Y 10 x Y 10 x Y 10 x Y 12 x Y 12 x Y 12 x Y 12 x Y 15 x Y 15 x Y 15 x Y 15 x Y 15 x Y 18 x Y 18 x Y 18 x Y 18 x Y 18 x Y 18 x Y 24 and Larger Reducing Wyes are Available Timewell 15

16 MAXFLO SPECIALTY ACCESSORIES SADDLE TEES Part Number 8 x ST 10 x ST 10 x ST 12 x ST 12 x ST 12 x ST 15 x ST 15 x ST 15 x ST 15 x ST 18 x ST 18 x ST 18 x ST 18 x ST 18 x ST 24 x ST 24 x ST 24 x ST 24 x ST 24 x ST 24 x ST 30 x ST 30 x ST 30 x ST 30 x ST 30 x ST 30 x ST 36 x ST 36 x ST 36 x ST 36 x ST 36 x ST 36 x ST 36 x ST TRASH RACKS AVAILABLE FOR HDPE AND METAL FLARED END SECTIONS HDPE DRAIN BASINS Part Number Height 8 05T08-U T10-U T12-U T15-U T18-U T24-U Height 8 05T08-O T10-O T12-O T15-O T18-O T24-O5 Drain Basins also available in sizes HDPE FLARED END SECTIONS ea FES 18 ea FES 24 ea FES 30 ea FES 36 ea FES METAL FLARED END SECTIONS 6 ea FESM 8 ea FESM 10 ea FESM 12 ea FESM 15 ea FESM 18 ea FESM 24 ea FESM 30 ea FESM 36 ea FESM 16 Timewell

17 MAXFLO SPECIALTY ACCESSORIES HINGED FLAP GATE OUTLET PROTECTION 6 ea FGP 8 ea FGP 10 ea FGP 12 ea FGP 15 ea FGP 18 ea FGP 24 ea FGP OUTLET MARKER POST MITERED HDPE END SECTIONS Unit Available Length 12 ea ea ea ea METER PITS 18 x 24 ea MP 18 x 30 ea MP 18 x 36 ea MP 18 x 12 ea W MISC. ITEMS Splicing Tape ea TAPE 4 x 5 T/T Marker Flag FLG Watergone Downspout Kit ea WG Outlet Marker Post ea OMP 7 11 Red Intake Marker Flag ea RFLG Drain Sleeve Pipe Sock SPL-100SCK SPLICING TAPE LINEAR DRAINS Available Slot Heights: 2.5 and 6 Available for Pipe s 4 to 24. Custom sizes are available for larger diameters Timewell 17

18 Timewell Drainage Products is a member of the Corrugated Plastic Pipe Association (CPPA), which is a division of the Plastic Pipe Institute (PPI). As an active member, Timewell participates in the development and promotion of industry standards as well as quality research programs which improve corrugated pipe and accessory products. Membership in the CPPA is a testimony to Timewell s commitment to product quality and industry leadership. Timewell Drainage Products annually participates in the National Transportation Product Evaluation Program (NTPEP) audit and has continually received the Certificate of Compliance following the audit. Successful completion of the NTPEP Audit indicates that products made by Timewell comply with AASHTO M 252 and M 294 standards for High Density Polyethylene Pipe. Continually receiving NTPEP Certification is also an expression of Timewell s status as a front-runner in the drainage industry as well as a signifier of dedication to product quality. Timewell Drainage Products is one of two approved manufacturers of High Density Polyethylene Pipe that are approved for use in the St. Louis Metropolitan Sewer District. Timewell is also an accepted vendor for other major metropolitan areas like Kansas City, Nashville and Louisville, KY. Timewell is constantly improving and promoting HDPE products and working closely with leading communities. Timewell Drainage Products MaXflo HDPE pipe and supplies are currently approved for use on Department of Transportation projects in each of the following states: Alabama, Illinois, Iowa, Kansas, Kentucky, Indiana, Missouri, Tennessee, West Virginia, Wisconsin, Arkansas, Mississippi, Texas and Nebraska. Timewell s ongoing work with the National Transportation Product Evaluation Program is a conduit for approval in most states. If yours is not currently listed, our NTPEP certification and ongoing internal approval efforts are adding new states on a regular basis. 18 Timewell

19 PVC DRAIN STRUCTURES AND GRATES PVC DRAIN BASINS Durable PVC construction design allows for paramount strength and functionality Completely custom made per customer s specification of diameter, height, inlet/outlet location, and grate type Minimal field adjustment No degradation or corrosion APPLICATIONS Roads and Highways Government Commercial Educational Facilities Golf Courses Parks and Recreational Facilities REASONS FOR USE Change in Type of Pipe Change in Flow Line Elevation Change in Direction Change in Pipe Diameter Storm Water Inlet Gaskets included AVAILABLE BASIN DIMENSIONS Outlet Minimum Basin Diameter Available Sump (A) (B) (C) Inlet/Outlets can be at any angle per verification of minimum angle. NOTE: Basins are ordered in the following height categories: and Provided by Timewell 19

20 PVC DRAIN STRUCTURES AND GRATES CATCH BASINS AND INLINE DRAINS PVC DRAIN BASIN WITH ROUND GRATE Height Height 8 05H08-DBU5 05H08-DBO H10-DBU5 05H10-DBO H12-DBU5 05H12-DBO H15-DBU5 05H15-DBO H18-DBU5 05H18-DBO H24-DBU5 05H24-DBO H30-DBU5 05H30-DBO H36-DBU5 05H36-DBO5 PVC DRAIN BASIN WITH SQUARE TRAFFIC GRATE (2 x2 Grate) Height Height 12 05H12-STGU522 05H12-STG H15-STGU522 05H15-STG H18-STGU522 05H18-STG H24-STGU522 05H24-STG H30-STGU522 05H30-STG0522 PVC DRAIN BASIN WITH SQUARE TRAFFIC GRATE (2 x3 Grate) Height Height 18 05H18-STGU523 05H18-STG H24-STGU523 05H24-STG H30-STGU523 05H30-STG0523 PVC DRAIN BASIN WITH CURB INLET GRATE (2 x2 Grate) Height Height 12 05H12-CIU522 05H12-CIO H15-CIU522 05H15-CIO H18-CIU522 05H18-CIO H24-CIU522 05H24-CIO H30-CIU522 05H30-CIO522 PVC DRAIN BASIN WITH CURB INLET GRATE (2 x3 Grate) Height Height 18 05H18-CIU523 05H18-CIO H24-CIU523 05H24-CIO H30-CIU523 05H30-CIO523 Provided by INLINE DRAINS ROUND DROP IN GRATE (only) Part Number 8 05H08-ID 10 05H10-ID 12 05H12-ID 15 05H15-ID 18 05H18-ID 24 05H24-ID 30 05H30-ID 36 05H36-ID STEEL GRATES Part Number 4 13D04-SG 6 13D06-SG 8 13D08-SG 10 13D10-SG 12 13D12-SG 15 13D15-SG 18 13D18-SG 24 13D24-SG INLET FILTERS FOR STORM DRAINAGE STRUCTURES Drop In Round Frame & Filter Drop In Rectangular Frame & Filter Call for Detailed Information Inlet Filters Available 20 Timewell

21 PVC DRAIN STRUCTURES AND GRATES Round Grates with Frames: 8 &10 = 1 piece = 2 piece Drop In Pedestrian Drop-In Domed (One-Piece) DRAIN BASIN GRATES Type Round Standard Round Pedestrian Round Solid Available Diameter Drop In Pedestrian H Drop In Domed 8 10 Square Hinged Standard H Square Hinged Pedestrian H Square Hinged Solid H Round Solid H Round Standard H Round Pedestrian H x 2 Square Traffic Grate x 3 Rectangle Traffic Grate x 2 Square Curb Inlet Grate x 3 Rectangle Curb Inlet Grate Square Hinged Standard Square Hinged Pedestrian 2 x 2 Square Curb Inlet Grate 2 x 2 Square Curb Inlet Grate 2 x 3 Rectangle Curb Inlet Grate Square Hinged Solid PVC INLINE DRAINS Fabricated from ASTM D3034 Pipe Abrasion and Corrosion Resistant Custom Built Just specify body diameter, outlet diameter, and grate s available from 8 36 Storm Water Inlet easy installation on a new or existing drain line Easily connects to numerous pipe materials! Provided by Timewell 21

22 PVC SPECIALTY PRODUCTS PVC INLINE CLEAN OUTS TO GRADE 4 for HDPE w/cap ea PVCCO 6 for HDPE w/cap ea PVCCO 8 for HDPE w/cap ea PVCCO PVC TO HDPE ADAPTERS 4 SDR to HDPE ea PVCDSA 6 SDR to HDPE ea PVCDSA 8 SDR to HDPE ea PVCDSA 10 SDR to HDPE ea PVCDSA 12 SDR to HDPE ea PVCDSA SDR35 & SCH40 available. HDPE TO PVC MANHOLE ADAPTERS 4 ea PVCMHA 6 ea PVCMHA 8 ea PVCMHA 10 ea PVCMHA 12 ea PVCMHA 15 ea PVCMHA 18 ea PVCMHA 24 ea PVCMHA 30 ea PVCMHA SDR35 & SCH40 available. QWIKSEAL ADAPTERS BY FERNCO 4 SDR 35 ea. 02F04-SDR35 4 SCH 40 ea. 02F04-SCH40 6 SDR 35 ea. 02F06-SDR35 6 SCH 40 ea. 02F06-SCH40 8 SDR 35 ea. 02F08-SDR35 Davison, MI PH: FAX: Timewell

23 SINGLE WALL PIPE SINGLE WALL CORRUGATED HDPE PIPE & FITTINGS Timewell high density polyethylene corrugated pipe is designed for a variety of uses. Agricultural Drainage Highway Underdrains Soil Stabilization USES Retaining Wall Stabilization Conduit Waste Management Residential/Commercial Construction Sports Field Drainage Pipe shall comply with the test methods, dimensions and markings found in ASTM F405 and F667, along with NRCS Code 606. AASHTO Grade shall comply with test methods, dimensions, and markings found in AASHTO M252 and AASHTO M only. ASTM & AASHTO grade materials available per job specifications. Nominal Diameter Inside Diameter (Average) Outside Diameter (Average) Minimum Pipe Stiffness at 5% Deflection Weight (lbs./20ft.) psi 3.25lbs psi 4.60lbs psi 6.85lbs psi lbs psi lbs psi lbs psi 40.75lbs psi 50.70lbs psi 66.10lbs psi lbs psi lbs AVAILABLE CONFIGURATIONS Small Coils Maxi , , , , 100, , , NA Timewell 23

24 SINGLE WALL PIPE SINGLE WALL TUBING TYPES PERFORATED/SLOTTED TUBING Perforated Tubing is one of the most commonly used types of tile. This tubing has a variety of uses ranging from farm drainage systems to carrying water away from foundations. Perforated Tubing is available in sizes 2 to 18. KNIFECUT TUBING (Sand) Knifecut (Sand) Tubing works the same as perforated field tile, taking in equal amounts of water but restricts the sand and silt from passing through that can potentially plug the tubing. Fast becoming an all-purpose tile, Knifecut Tubing is one of our most popular sellers. Available in sizes 2 to 15. KNIT FILTER TUBING (Sock Tile) Knit Filter Tubing or Sock Tile as it is more commonly referred to, is a polyester wrapped perforated tile. Commonly used in construction applications and sandy soils, Knit Filter Tubing provides maximum protection against soil infiltration. Most commonly used in sizes 3 through 6. Other sizes available upon request. SOLID TUBING Solid Tubing takes in water from one end of the pipe and carries it to the other end without taking water from the surrounding areas. Available in all sizes. SEWER TUBING Sewer Tubing uses rows of drainage holes to distribute effluent to surrounding areas. This product is an effective and inexpensive way for effluent distribution in approved application. Available in 4 only. MUCK TUBING Muck Tubing is designed for use in heavier gumbo type soils and soils high in organic content, which are typically not as susceptible to water breakdown. Muck tubing allows the largest water inlets with hole sizes of ½ inch round. Available in sizes 3 6 only. 24 Timewell

25 SINGLE WALL PIPE PERFORATED SINGLE WALL Part Number 2 x P Small Coil 3 x P Stick 3 x P Small Coil 3 x 5, X5600B Maxi 3 x 6, X6200B Maxi 4 x P Stick 4 x P Small Coil 4 x P Small Coil 4 x 3, X3250B Maxi 5 x P Small Coil 5 x 2, X2300B Maxi 6 x P Small Coil 6 x 1, X1320B Maxi 6 x 1, X1685B Maxi 8 x P Stick 8 x P Small Coil 8 x X920B Maxi 10 x P Stick 10 x X575B Maxi 12 x P Stick 12 x X370B Maxi 15 x P Stick 15 x X220B Maxi 18 x P Stick SOLID SINGLE WALL Part Number 2 x S Small Coil 3 x S Stick 3 x S Small Coil 3 x 5, X5600B Maxi 3 x 6, X6200B Maxi 4 x S Stick 4 x S Small Coil 4 x S Small Coil 4 x 3, X3250B Maxi 5 x S Small Coil 5 x 2, X2300B Maxi 6 x S Small Coil 6 x 1, X1320B Maxi 8 x S Stick 8 x S Maxi 8 x X920B Maxi 10 x S Stick 10 x X575B Maxi 12 x S Stick 12 x X370B Maxi 15 x S Stick 15 x X220B Maxi 18 x S Stick SEWER PIPE KNIFECUT/NARROW SLOT SINGLE WALL Part Number 3 x K Small Coil 3 x 5, X5600B Maxi 3 x 6, X6200B Maxi 4 x K Small Coil 4 x K Small Coil 4 x 3, X3250B Maxi 5 x 165 S K Small Coil 5 x 2, X2300B Maxi 6 x K Small Coil 6 x 1, X1320B Maxi 6 x 1, X1685B Maxi 8 x K Stick 8 x K Small Coil 8 x X920B Maxi 10 x K Stick 10 x X575B Maxi 12 x K Stick 12 x X370B Maxi 15 x K Stick 15 x X220B Maxi PERFORATED SINGLE WALL WITH SOCK Part Number 3 x SCK Small Coil 3 x 5, X5600BSK Maxi 3 x 6, X6200BSK Maxi 4 x SCK Small Coil 4 x SCK Small Coil 4 x 3, X3250BSK Maxi 5 x SCK Small Coil 5 x X2300BSK Maxi 6 x 100 S SCK Small Coil 6 x 1, X1320BSK Maxi 6 x 1, X1685BSK Maxi 8 x SCK Small Coil 8 x X920BSK Maxi 10 x SCK Stick 10 x X575BSK Maxi 12 x SCK Stick 12 x X370BSK Maxi 15 x SCK Stick 15 x X220BSK Maxi Part Number 4 x 10 Sewer Stick SWR Stick 4 x 100 Sewer Tubing SWR Small Coil 10 x 20 Gravelless Leachbed Tubing GLT Stick Timewell 25

26 SINGLE WALL FITTINGS DOWN SPOUT ADAPTOR 2 x 3 x DSA 2 x 3 x DSA 3 x 4 x DSA 4 x 6 x DSA CLAY TO PLASTIC ADAPTORS CPA CPA CPA CPA CPA CPA CPA EXTERNAL SPLIT SOIL TIGHT COUPLERS SP SP SP SP SP SP SP 12 ea SP 15 ea SP 18 ea SP 24 ea SP 30 ea SP 36 ea SP 42 ea SP 48 ea SP ELBOWS 3 90 Degree Tile Elbow Degree Tile Elbow EXTERNAL SNAP COUPLERS SN SN SN SN 26 Timewell

27 SINGLE WALL FITTINGS TAP TEES 3 Tap Tee TT 4 Tap Tee- Long TTL 4 Tap Tee- Short TTS 4 Internal Tap Tee-Short TTSI 4 Internal Tap Tee- Long TTLI 5 Tap Tee - Short TTS 6 Tap Tee - Short TTS STRAIGHT TEES 2 Tile Tee T 3 Straight Tile Tee T 4 Straight Tile Tee T 5 Straight Tile Tee T 6 Straight Tee T REDUCING TEES 4 x 3 Reducing Tee T 5 x 4 Reducing Tee T 5 x 4 Reducing Tee Internal TI 6 x 5 x 4 Reducing Tee T 6 Cross Reducing Tee ea TC 8 x 8 x 6 x 5 x 4 Reducing Tee T 10 x 10 x 8 x 6 Reducing Tee T 12 x 12 x 10 x 8 Reducing Tee T 15 x 15 x 12 x 10 Reducing Tee ea T BLIND TEES 4 Blind Tee TB 5 x 4 Reducing Tee-Blind TB 6 Blind Tile Tee TB 8 x8 x6 x5 x4 Step Tee-Blind TB 10 Blind Tile Tee TB 12 Blind Tile Tee TB 15 Blind Tee ea TB WYES 3 Wye Y 4 Wye Y 5 Wye Y 5 x 4 Reducing Wye Y 6 x 5 x 4 Reducing Wye Y 8 Wye ea Y Timewell 27

28 SINGLE WALL FITTINGS END CAPS 2 End Cap - Tile EC 3 End Cap- Tile EC 4 End Cap-Tile EC 5 End Cap- Tile EC 6 End Cap Tile EC 8 End Cap-Tile EC 10 End Cap-Tile EC 10 x4 End Cap w/o Grommet ECNG 12 End Cap-Tile EC 15 End Cap-Tile ea EC 18 End Cap-Split ea EC 24 End Cap- Split ea EC INTERNAL COUPLERS IC IC IC IC IC IC PLASTIC PLUGS 3 Plastic Plug PLG 4 Plastic Plug PLG 4 Plastic Plug - Perforated PLGP 5 Plastic Plug PLG 6 Plastic Plug PLG REDUCERS 5 x 4 Reducer - Internal RI 6 x 5 Reducer- Internal RI 4 x 3 Reducer R 6 x 5 x 4 Reducer (Ext) R 8 x 6 Reducer R 10 x 8 Reducer R 12 x 10 Reducer R 15 x 12 Reducer ea R 15 x 12 x 10 Reducer ea R 18 x 15 Reducer ea R 24 x 12 Reducer ea R 28 Timewell

29 SINGLE WALL ACCESSORIES SUMP BASINS & LIDS 16 x 24 Sump Pit Liner ea SP 16 x 30 Sump Pit Liner ea SP 16 Heavy Duty Locking Lid ea LID 18 x 24 Sump Pit Liner ea SP 18 x 30 Sump Pit Liner ea SP 18 Heavy Duty Locking Lid ea LID *Hickenbottom Bar Guards are ideally sized for Hickenbottom Risers ANIMAL GUARDS 4 ea AG 6 ea AG 8 ea AG 10 ea AG 12 ea AG 15 ea AG 18 ea AG 24 ea AG BAR GUARDS 4 Bar Guard ea BG 5 Bar Guard ea BG 6 Bar Guard ea BG 8 Bar Guard ea BG 10 Bar Guard ea BG 12 Bar Guard ea BG 15 Bar Guard ea BG 18 Bar Guard ea BG 24 Bar Guard ea BG 30 Bar Guard ea BG 36 Bar Guard ea BG 42 Bar Guard ea BG 48 Bar Guard ea BG 8 Hickenbottom Bar Guard ea HBG 10 Hickenbottom Bar Guard ea HBG 12 Hickenbottom Bar Guard ea HBG Timewell 29

30 MISCELLANEOUS ITEMS New! Risers RISERS INLETS & TEES Unit MaXflo 12 x 3 Riser ea. MaXflo 12 x 6 Riser ea. MaXflo 15 x 3 Riser ea. MaXflo 15 x 6 Riser ea. MaXflo 18 x 3 Riser ea. MaXflo 18 x 6 Riser ea. MaXflo 24 x 3 Riser ea. MaXflo 24 x 6 Riser ea. 1.5 of 5/16 holes Larger sizes available upon request 1.5 of 1 holes 3 of 1 holes Section 1 3 of 5/16 holes Section 2 5 Hickenbottom Riser 1 Hole ea HBR1 5 Hickenbottom Riser 5/16 Hole ea HBR516 5 Hickenbottom Tee ea HBT 6 Hickenbottom Riser 1 Hole ea HBR1 6 Hickenbottom Riser 5/16 Hole ea HBR516 6 Hickenbottom Tee ea HBT 8 Hickenbottom Riser 1 Hole ea HBR1 8 Hickenbottom Riser 5/16 Hole ea HBR516 8 Hickenbottom Tee ea HBT 10 Hickenbottom Riser 1 Hole ea HBR1 10 Hickenbottom Riser 5/16 Hole ea HBR Hickenbottom Tee ea HBT 12 Hickenbottom Riser 1 Hole ea HBR1 12 Hickenbottom Riser 5/16 Hole ea HBR Hickenbottom Tee ea HBT 6 Precision Intake Section 1 ea PR1 6 Precision Intake Section 2 ea PR2 6 Flat Bottom Precision Tee ea PFBT 6 Round Bottom Precision Tee ea PRBT 8 Precision Intake Section 1 ea PR1 8 Precision Intake Section 2 ea PR2 10 Precision Intake Section1 ea PR1 10 Precision Intake Section 2 ea PR Combo Precision Tee ea PT 30 Timewell

31 MISCELLANEOUS ITEMS RESIDENTIAL DRAINAGE ACCESSORIES Part Number 4 Round Grate - Green RGGR 4 Round Grate - Black RGBK 6 Round Grate - Green RGGR 6 Round Grate - Black RGBK 6 Jiff-E-Basin JIFB 9 Catch Basin CB 9 Square Grate - Green SQGGR 9 Square Grate - Black SQGBK 9 Atrium Grate - Green ATGGR 9 Atrium Grate - Black ATGBK 12 Catch Basin 2 WAY CB2 12 Square Grate - Green SQGGR 12 Square Grate - Black SQGBK 12 Atrium Grate - Green ATGGR 12 Atrium Grate - Black ATGBK 4 Channel Drain CD 4 Channel Drain CD 4 x 2 Ft. Grate CDG 4 Endcap Adaptor CDECA 4 Bottom Outlet Adaptor CDBOA 4 End Cap CDEC 4 Coupling CDC 4 End Hub Outlet CDEHO 4 Support Brace CDSB Flip Up Drainage Emitter PUE Timewell 31

32 PIPE INSTALLATION AN OVERVIEW OF HDPE PIPE INSTALLATION The following is a summarized explanation of the recommended steps taken to install a quality pipe system. Please use for informational purposes only. Timewell s recommended installation procedures listed below are based on ASTM D2321 (Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications). Please refer to timewellpipe.com for a complete listing of Classes of Embedment and Backfill Materials along with Recommendations for Installation and Use of Soils and Aggregate for Foundation, Embedment and Backfill. PRE-INSTALLATION STORAGE Certain steps should be taken for handling and storing pipe properly on job sites. If pipe arrives at a site in pallets, it should remain in pallets until installation. Dragging, dropping, or hitting pipe on the ground or other objects may cause damage. Inspect all pipe and material before installation. When stacking non-palletized pipe, some form of stop blocks should be used when starting bottom layer to avoid collapse. Pipe stockpiles on jobsites FIG. 1 should not exceed 5 feet in height, Trench and should not be walked or climbed Cross upon. The recommended way to Section stack pipe with attached bells is Final to Backfill Showing alternate Terminology the direction of the bell ends in each row of the stack. Pipe Embedment FIG. 1 Trench Cross Section Showing Terminology Excavated Trench Width Haunching Bedding Final Backfill Excavated Trench Width Initial Backfill Foundation (may not be required) Chart I - Minimum Trench Widths Nominal Pipe Diameter in. (mm) Minimum Trench in. (m) 4 (100) 21 (0.5) 18 (450) 39 (1.0) 6 (150) 23 (0.6) Nominal Pipe Diameter in. (mm) Minimum Trench in. (m) 24 (600) 47 (1.2) 8 (200) 26 (0.7) 30 (750) 57 (1.4) 10 (250) 28 (0.7) 36 (900) 64 (1.6) 12 (300) 31 (0.8) 42 (1050) 72 (1.8) 15 (375) 34 (0.9) 48 (1500) 80 (2.0) TRENCH EXCAVATION Field surveys are taken to establish the alignment of the system for pipe installation. Proper alignment and grade of pipe is important to assure system will function as designed. Once the alignment (150 of to 300 the mm) system is established, the excavation of the trench can begin. The width of trench should Pipe Zone be decided based on the width of pipe being installed. Trenches too narrow do Haunch Zone not allow pipe to be installed correctly. Trenches too wide can add to overall cost. Trenches wide enough for proper 6 installation should be used. Springline 6 to 12 in. Chart 1 - Minimum Trench Widths When compaction equipment is not needed, 6-8 inches on either side of pipe is the minimum space acceptable for trench width. (Please refer to Chart I for minimum trench widths) The depth of the trench should allow for the proper cover to be added during the backfill process. If the floor of the trench is unsuitable, then, additional excavation may be needed as recommended by engineer. If excavation exceeds desired trench depth, additional backfill may be added to the bedding of the trench. Pipe Embedment Haunching Bedding Initial Backfill Foundation (may not be required) Springline 6 to 12 in. (150 to 300 mm) Pipe Zone Haunch Zone 6 ENVELOPE CONSTRUCTION In a compacted envelope, the load is distributed to the initial backflow, haunching material, bedding and foundation. Once the trench has been excavated, the construction of the envelope begins. Once in place, the envelope is covered by the final backfill. When native soil is not an acceptable material for backfill, additional material will need to be brought in. 32 Timewell

33 PIPE INSTALLATION BACKFILL PLACEMENT & MINIMUM COVER Before placing any backfill, the floor of the trench must be made suitable for proper installation. Pipe should have a firm bedding no less than 4 inches deep, up to 6 inches in cases where rock or other coarse material is present. Uniform placement and compaction of bedding allows for equal load distribution of pipe and protruding features of pipe connections. Class I, II and III material should be used in the bedding zone. Haunching is the next and most important layer of backfill that is put into place. The haunching should be worked in and compacted around the curvature of the bottom half of the pipe before the rest of backfill is placed. The springline height is half of the OD of the pipe. Class I, II and III material should be used in the haunching zone that is the same, or very similar to, material used in the bedding zone. This helps to maintain side support of the envelope. The initial backfill begins at the springline and extends to a minimum of 6 inches above the top of the pipe. Class I, II and III materials can be used in the initial backfill zone. If different classes of material are used within the envelope, a geotextile is required between layers. It is very important not to use compaction equipment directly over pipe while placing initial backfill. The final backfill is not quite as crucial as the envelope around the pipe, but it is still important to keep a good level of compaction to prevent rutting at the top of trench. The final backfill extends from the initial backfill to the surface and should be a minimum of 6 inches deep. Recommended minimum height of cover for 4 48 inch diameter pipe is 12 inches in a typical trench installation. Height of cover in flexible pavement applications (asphalt) is measured from top of pipe to the bottom of flexible pavement. In a rigid pavement application (concrete), height of cover is measured from top of pipe to the top of the rigid pavement application. When hydrohammer type compactors are approved for use, a minimum of 48 inches of cover is recommended. If excessive construction loads are passing over pipe system, minimum cover may be increased. The excavated material from digging the trench may be used for the final backfill stage, unless otherwise required. POST-CONSTRUCTION INSPECTION Deflection testing may be required by the engineer to ensure deflection limits are not exceeded. At least 30 days should be given to allow the system and soil to stabilize before deflection testing is performed. COMPACTION & COMPACTION EQUIPMENT There are different methods of compaction used to achieve desired density. There is very little compaction required for crushed stone. For Class II and III backfill material, hand-held or walk behind compaction equipment is recommended. This equipment eliminates any damage to the pipe and will ensure proper compaction density. OTHER CONSIDERATIONS Parallel Pipe Installation Special considerations and construction techniques are used when installing parallel pipe. Side support of the pipe must be maintained by allowing the proper amount of backfill to be compacted between parallel pipes. One foot of space should be used between pipe up to 24 inches in diameter. For pipe more than 24 inches, half of the diameter is recommended for proper spacing. Connecting Different Pipe Types When installing a new system, there may be a need to connect different types of pipe together. In these cases, a specific adaptor may be available to complete the connection. Another option is the use of a concrete collar. When using this method, a geotextile wrap is put around the joining ends to keep out foreign materials. Then, concrete is poured around the connection. Vertical Installation When installing access risers, meter pits, and catch basins, pipe is installed vertically. In any load situation, the frame and cover should be secured to a concrete collar around the vertical pipe. These concrete collars transfer load into the soil to keep stress off of the pipe. Joints The assembly and lubrication of joints should comply with Timewell s recommendations Timewell 33