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3.03 JOINING PIPES AND FITTINGS <br /> A. Cast-Iron Soil Pipe: Make compression joints and hubless joints in accordance with the recommendations of the <br /> CISPI Cast Iron Soil Pipe and Fittings Handbook,Chapter IV. <br /> 3.04 INSTALLATION <br /> A. Refer to Section 15050"Basic Mechanical Materials and Methods",for general piping installation instructions. <br /> B. Install supports and anchors in accordance with Section 15050 "Basic Mechanical Materials and Methods" and <br /> Section 15140"Supports and Anchors",and the CISPI Handbook. <br /> C. Make changes in direction for drainage and vent piping using appropriate 45 degree wyes,half-wyes,or long sweep <br /> quarter, sixth, eighth, or sixteenth bends. Sanitary tees or short quarter bends may be used on vertical stacks of <br /> drainage lines where the change in direction of flow is from horizontal to vertical, except use long-tum tees where <br /> two fixtures are installed back to back and have a common drain. Straight tees,elbows,and crosses may be used on <br /> vent lines. No change in direction of flow greater than 90 degrees shall be made. Where different sizes of drainage <br /> pipes and fittings are connected, use proper size, standard increasers and reducers. Reduction of the size of <br /> drainage piping in the direction of flow is prohibited. <br /> D. Install underground building drains to conform with Minnesota Plumbing Code, and in accordance with the Cast <br /> Iron Soil Pipe Institute Engineering Manual and Handbook. Lay underground building drains beginning at low <br /> point of systems, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of <br /> piping facing upstream Install required gaskets in accordance with manufacturer's recommendations for use of <br /> lubricants, cements, and other special installation requirements. Maintain swab or drag in line and pull past each <br /> joint as it is completed. <br /> E. Install building drain pitched down at minimum slope of 1/4" per foot(2 percent) for piping 3" and smaller,and <br /> 1/8"per foot(1 percent)for piping 4"and larger. <br /> F. Extend building drain to connect to sewer piping,of size and in location indicated for service entrance to building. <br /> Sewer piping is specified in a separate section of Division 2. <br /> G. Install sleeve and mechanical sleeve seal through foundation wall for watertight installation. <br /> H. Install 1" thick extruded polystyrene over underground building drain piping not under building. Width of <br /> insulation shall extend minirrmm of 12"beyond each side of pipe. Install directly over, and center on pipe center <br /> line. <br /> 3.05 INSTALLATION OF PIPING SPECIALTIES <br /> A. Install backwater valves in sanitary building drain piping as indicated, and as required by plumbing code. For <br /> interior installation,provide cleanout cover flush to floor centered over backwater valve cover and of adequate size <br /> to remove valve cover for service. <br /> B. Install expansion joints on vertical risers as indicated,and as required by plumbing code. <br /> C. Above Ground Cleanouts: Install in above ground piping and building drain piping as indicated,and: <br /> 1. As required by the plumbing code; <br /> 2. At each change in direction of piping greater than 45 degrees; <br /> 3. At minimum intervals of 50'for piping 4"and smaller and 100'for larger piping; <br /> 4. At base of each vertical soil or waste stack. <br /> 15412-5 No.99132-CP2 <br />