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P3007.3 Sump Design
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The sump pump capacity and head shall be appropriate to anticipated use requirements.
The sump shall be not less than 18 inches (457 mm) in diameter and 24 inches (610 mm) deep, unless otherwise approved. The sump shall be accessible and located so that drainage flows into the sump by gravity. The sump shall be constructed of tile, concrete, steel, plastic or other approved materials. The sump bottom shall be solid and provide permanent support for the pump. The sump shall be fitted with a gas-tight removable cover that is installed not more than 2 inches (51 mm) below grade or floor level. The cover shall be adequate to support anticipated loads in the area of use. The sump shall be vented in accordance with Chapter 31.
Pipe and fitting materials shall be constructed of copper alloy, copper, CPVC, ductile iron, PE, or PVC.
Pipe and fittings shall be rated for the maximum system operating pressure and temperature. Pipe fitting materials shall be compatible with the pipe material. Where pipe and fittings are buried in the earth, they shall be suitable for burial.
Pumps connected to the drainage system shall connect to a building sewer, building drain,soil stack, waste stack or horizontal branch drain.Where the discharge line connects into horizontal drainage piping, theconnection shall be made through a wye fitting into the top of the drainage piping and such wye fitting shall be located not less than 10 pipe diameters from the base of any soil stack, waste stack or fixture drain.