DIVISION 22 PLUMBING SECTION INTERIOR SANITARY WASTE AND VENT PIPING SYSTEM

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1 DIVISION 22 PLUMBING PART 1 GENERAL 1.01 DESCRIPTION A. Provide a complete system of soil, waste, and vent piping to fixtures and equipment, including traps, floor drains and cleanouts, extending to a point 5 feet outside building wall. Connect to site sanitary sewer system. B. Connect to building sanitary drain and vent system where shown on Drawings. C. Site sanitary sewer system provided by the General Trades Contractor. D. Refer to Drawings for size of connections to fixtures. E. Test complete new system QUALITY ASSURANCE A. Standards: American Society for Testing and Materials (ASTM) and the Cast Iron Soil Pipe Institute (CISPI), American Water Works Association (AWWA), American Society of Mechanical Engineers (ASME), and American National Standard Institute (ANSI). B. All pipe and fittings shall conform to the requirements of Commercial Standard CS MANUFACTURERS A. Piping: 1. PVC Plastic: Charlotte, Nibco, Manville, Yardley, Freedom or Crestline. B. Drains and Cleanouts: Zurn, Wade, Jay R. Smith, MIFAB, Watts or Josam. PART 2 PRODUCTS 2.01 PIPING A. Piping and fittings in earth under slab: 1. Schedule 40 PVC (ASTM D1785 and ASTM D2665), solid wall. PVC DWV solid wall fittings shall conform to ASTM D2665. B. Interior Piping and Fittings Above Slab (all areas): 1. Hubless cast iron (CISPI-301), factory enamel coated. Fittings: Service weight cast iron (ASTM A74), factory enamel coating. C. Vent Piping and Fittings: 1. Schedule 40 PVC (ASTM D1785 and ASTM D2665), solid wall. PVC DWV solid wall fittings shall conform to ASTM D HC

2 D. All fittings shall be drainage type and be same manufacturer as piping and be compatible with piping for size, material, and joint type. E. Sump Pump Discharge Piping: 1. 4 Inches and Smaller: Standard weight, galvanized steel (ASTM 120, Type "F") with galvanized cast iron screwed drainage fittings, shall be used to the point of connection to a gravity line. F. All cast iron piping and fittings shall have factory-applied enamel coatings and manufactured in the United States JOINTS A. PVC Plastic Piping: 1. Solvent and cements as recommended by the pipe and fittings manufacturer. The solvents and cements must have a VOC content of 510 g/l less water. Solvent cement joints shall be made in a two step process with primer manufactured for thermoplastic piping systems and solvent cement conforming to ASTM D All fittings shall be manufactured in the United States and shall conform to NSF FLOOR DRAINS A. General Construction: Drains to be adjustable, coated cast iron double drainage pattern, bottom outlet, inside caulk with flashing clamp, strainers, sediment buckets and trap primer inlets where required and other accessories and features indicated on the Schedule on the Drawings. B. Each floor drain, other than a light duty rating, shall have an ANSI load rating and be so indicated on the Shop Drawings. If rating is not indicated on Shop Drawings, they will be rejected. C. Provide membrane clamps on all floor drains in floors having waterproof membrane. D. Slot in grates shall be free of flashing (clean cut), and tops shall not have sharp edges which may be injurious to bare feet when used in shower or swimming pool areas. E. Refer to Schedule on the Drawings for specific types and accessories CLEANOUTS A. General Construction: Floor cleanouts shall be adjustable, inside caulk with flashing clamp and other accessories and features indicated on the Schedule on the Drawings. B. General: All cleanouts to be line size up to and including 4 inches and installed in accessible locations. C. Each floor cleanout other than a light duty rating, shall have an ANSI load rating and be so indicated on the Shop Drawings. If rating is not indicated on Shop Drawings, they will be rejected HC1-033

3 2.05 TRAPS D. Provide membrane clamps on all cleanouts in floors having waterproofing membranes. E. Refer to Schedule on the Drawings for specific types and accessories. A. Same material as piping. B. Refer to Section , "Plumbing Fixtures" for fixture traps, exception, floor mounted fixtures VENT FLASHING A. 8 ounce copper (ASTM B152) flashing or per roof manufacturer's requirements. PART 3 EXECUTION 3.01 GENERAL INSTALLATION A. Pitch soil and waste piping no less than 1/8 inch per foot, for pipes 2 inches, pitch at 1/4 inch per foot. B. Minimum size is 2 inches for underground waste and vent piping. C. Install P-trap below floor for floor drains, floor sinks, janitor receptors, showers, standpipes, bathtubs, and hub drains. D. All changes of directions shall be made with TY or Y fittings and 1/8 bends as required. E. All pipe joints shall be compatible with piping for size, material and joint types. F. Provide all necessary adapters, fittings, and pipe required to make connections to site utility piping and to new and existing building sewer and drains. G. All sanitary waste and vent piping in return air plenums required to be insulated, shall be insulated with pipe insulation meeting the requirements for return air plenums. H. Plastic piping shall not be allowed in return air plenums and other areas prohibited by Code. I. All piping shall be concealed, unless indicated on Drawings. J. Any horizontal sanitary piping located in elevator equipment rooms shall be covered and enclosed by a painted metal enclosure to prevent water dripping onto equipment. K. Vertical stacks shall be supported by riser clamps at each floor and concealed when passing through finished areas, unless noted otherwise. 13-HC

4 3.02 VENTS A. Install vents through roof as follows: 1. 3 inches minimum size. 2. Locate at least 8 feet away from outside wall of building and 15 feet away from outside air intakes or operable windows. 3. Offset vent piping below roof to allow for thermal expansion and contraction, minimum 4 foot offset. 4. Vents to extend 12 inches above roof, except where specifically required to be higher or lower by code. 5. Plumbing Contractor cuts hole(s) in roof. Install vent through roof vent boot or sleeve in membrane or metal roof. Roof vent boots furnished and installed by General Trades Contractor. General Trades Contractor to flash vents into roof construction and make watertight. 6. Coordinate vent locations through roofs with General Trades Contractor, HVAC Contractor and Architect. B. Connect to existing vents where shown on Drawings. C. Pitch vents for proper drainage FLOOR DRAINS AND CLEANOUTS A. This Contractor is responsible for installing top of floor drains and cleanouts flush and level with wall or finished floor. If not shown on Architectural Drawings, confirm elevation and proper floor pitch to floor drains and floor cleanouts with Architect before roughing in. All items not installed flush and level will be removed and replaced by this Contractor at no cost to the Owner. B. Use graphite on all cleanout plug threads. C. Install duct tape over floor drains and cleanout covers to provide protection from scratching and collection of dirt and debris during construction. Remove tape just prior to final inspection. D. Install wall cleanouts in finished areas, at the base of all stacks at 18 inches above finished floor where indicated on Drawings. E. Provide exposed cleanout plugs without coverplate in unfinished areas or in above ceiling installations. F. Exterior: Install in center of 24 inch square concrete slab, 6 inches thick flush with grade or pavement. Concrete shall be installed by Plumbing Contractor. G. All floor drain interiors shall be clean just prior to final inspection. H. Install floor drains and cleanouts in accessible locations. I. Install square cleanouts and floor drains in quarry tile floors and carefully align edges parallel to room walls. J. Install tops of hub drains flush with finished floor HC1-033

5 3.04 COORDINATION 3.05 TESTS A. Coordinate piping with beams, joists, foundation piers and walls and footings, HVAC piping and ductwork, equipment, electrical equipment, wiring, and installation with conduit, crane and crane rails. B. Coordinate vents through roof, floor and hub drain and cleanout locations and elevations and installation with walls, equipment and housekeeping pads with the General Trades Contractor and other Contractors. C. Coordinate location and elevation of new site sanitary sewer. D. Coordinate location, size and elevation of existing building sanitary lines. E. Coordinate pit locations for bathtubs on slab with General Trades Contractor. A. Test entire new sanitary system as required by the Local Code Authority. B. For a minimum test, plug piping and fill with water to highest vent on roof to provide a minimum of 10 foot of head of water on all parts of the system. Maintain for one hour with no leakage. Repair any deficiencies. Final test to be conducted with smoke or peppermint at 1 inch W.C. for fifteen (15) minutes. Install gaskets or reset fixtures with new gaskets as required. C. All tests to be performed before any piping is covered or concealed and a written record of the test shall be submitted to the Architect's Representative as a part of the Owner's Record and Information Booklets. D. Should leaks occur, the defective section(s) of pipe and/or defective fitting(s) shall be removed and replaced with new materials at no cost to Owner. E. Tests shall be repeated until no leaks occur. F. Isolate existing system as much as possible during test. END OF SECTION 13-HC