(A) Building sewers shall have a diameter of four inches minimum with a minimum slope of one-quarter inch per foot. Sewer pipe approvable for building sewer construction include plastic pipe SDR-35 conforming to ASTM Designation D-3034 with flexible rubber gasket joints no greater than ten-foot lengths or ductile iron pipe if the owner submits a method of fining satisfactory to the Superintendent. Sewer pipe bedding shall be placed so that the entire length of pipe will have full bearing.
(B) Adequate bedding shall consist of four inches of select granular backfill beneath the pipe and six inches over the pipe. Select granular backfill material shall be approved by the Superintendent and consist of sound, hard, durable, well-graded stone, run-of-bank gravel or other acceptable granular material with maximum size of one and one-half. This material shall be free of frozen lumps, foreign materials or other objectionable material.
(C) The size, slope, alignment, materials of construction of a building sewer, and the methods to be used in excavating, placing of the pipe, jointing, testing and backfilling the trench, shall all conform to the requirements of the building and plumbing code or other applicable rules and regulations of the village.
(D) In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the A.S.T.M. and W.P.C.F. Manual of Practice No. 9 shall apply.
(Prior Code, § 3-4-6)