(A) The building sewer shall be of PVC pipe conforming to ASTM 3034 SDR-35 with elastomeric gasket joints of the integral bell type, or Schedule 40 with solvent welded joints. Joint solvent shall conform to ASTM D-2564. Joints shall be tight and waterproof.
(B) The size and slope of the building sewer shall be subject to the approval of the Superintendent, but in no event shall the diameter be less than six inches. The slope of such six-inch pipe shall be not less than one-eight inch per foot. Common services for more than one building and services for commercial or industrial uses shall be not less than eight inches in diameter.
(C) Whenever possible the building sewer shall be brought to the building at an elevation below the basement floor. No building sewer shall be laid parallel to or within three feet of any bearing wall, which might thereby be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid at uniform grade and in straight alignment in so far as possible. Changes in direction shall be made only with properly curved pipe and fittings. No tees or 90 degree bends are allowed.
(D) In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such drain shall be lifted by approved artificial means and discharged to the building sewer.
(E) All excavations required for the installation of a building sewer shall be open trench work unless otherwise approved by the Superintendent. Pipe laying and backfill shall be performed in accordance with ASTM specifications C12, latest edition, except that no backfill shall be placed until the work has been inspected.
(F) All joints and connections shall be made gastight and watertight. All connections shall be made with manufactured or “Fernco” fittings.
(G) The connection of the building sewer into the public sewer shall be made at the “Y” branch, if such branch is available at a suitable location. If no properly located “Y” branch is available, the owner shall at his or her expense install a “Y” branch in the public sewer at the location specified by the Superintendent. The invert of the building sewer at the point of connection shall be at the same or at a higher elevation than the invert of the public sewer. A smooth, neat joint shall be made and the connections made secure and watertight. Special fittings may be used for the connection only when approved by the Superintendent.
(Ord. 05-54, Art. III, §§ 6-12, passed 12-19-2005; Am. Ord. 10-56, Art. III, §§ 6-12, passed 10-11-2010)
Penalty, see § 52.99