The building sewer shall be cast iron soil pipe, ASTM specification, (A74-42) or approved equal, vitrified clay sewer pipe, ASTM specification (C-13-59T) or approved equal; or other suitable material approved by the superintendent. Joints shall be tight and waterproof. Any part of the building sewer that is located within ten feet of a water service pipe shall be constructed of cast iron soil pipe with mechanical joints with rubber gaskets or equal substitute.
Cast iron pipe with mechanical joint with rubber gasket may be required by the superintendent where the building sewer is exposed to damage by tree roots. If installed in filled unstable ground, the building sewer shall be of cast iron soil pipe, except that nonmetallic material may be accepted if laid on a suitable concrete bed or cradle as approved by the superintendent.
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 city. In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the American Society of Testing Materials, Water Pollution Control Federation Manual of Practice No. 9, and Standard Specifications for Water and Sewer Main Construction in Illinois shall apply.
(Ord. 81-50 § 4, 1980; Ord. 538 § 1, 1976-; prior code § 20.507).