(A) Requirement; separate building sewer. A separate and independent building sewer shall be provided for every building; except where one building stands at the rear of another on an interior lot and no private sewer is available or can be constructed to the rear through an adjoining alley, court, yard, or driveway, the building sewer from the front building may be extended to the rear building and the whole considered as one building sewer. Other exceptions will be allowed only by special permission granted by the Superintendent.
(B) Old building sewers. Old building sewers or portions thereof may be used in connection with new buildings only when they are found on examination and test by the inspector to meet all requirements of this chapter.
(C) Specifications.
(1) Pipe materials. The building sewer shall be constructed of SDR 35 PVC Sewer Pipe. All materials of construction of a building sewer and the methods to be used in excavating, placing of the pipe, joint testing, and back filling the trench shall conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the town and shall be subject to the approval and inspection by the Waste Water Superintendent or his or her designated representative.
(2) Joints and connections. All joints and connections shall be made gas tight and water tight and shall conform to the manufacturer’s recommendations. Furthermore, all joints and connections shall conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the town. In the absence of code provisions or in application thereof, the materials and procedure set forth in appropriate specification of the A.S.T.M. and Water Pollution Control Federation Manual of Practice Number 9 shall apply.
(3) Size and slope. The size and slope of the building sewers shall be subject to the approval of the inspector, but in no event shall the diameter be less than four inches. The slope of the four-inch pipe shall not be less than one-eighth inch per foot.
(D) Elevation.
(1) 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. All excavations required for the installation of a building sewer shall be open trench work unless otherwise approved by the inspector. Pipe laying and backfill shall be performed in accordance with current A.S.T.M. specifications except that no backfill shall be placed until the work has been inspected by the inspector or his or her representative.
(2) In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by these drains shall be lifted by approved artificial means and discharged to the building sewer.
(E) Connection requirements. The connection of the building sewer into the public sewer shall conform to the requirements of the Building and Public Code and other applicable rules and regulations of the town, and the procedures set forth in the appropriate specifications of the A.S.T.M. and the W.B.C.F. manual of Practice Number 9. The connection of the building sewer into the public sewer shall be made at the “Y” glance designated for the property, if the branch is available at a suitable location. Any connection not made at the designated “Y” branch in the main sewer shall be made only as directed by the Waste Water Superintendent. All such connections shall be made gas tight and watertight. Any deviation from the prescribed procedures and materials must be approved by the Superintendent before installation.
(Ord. 1968-S-2, passed 5-14-1968) Penalty, see § 10.99