Legal Documents of Gatlinburg

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 of the trench, shall all conform to the requirements of the Standard 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 A.S.T.M. and W.P.F.C. Manual of Practice, No. 9, shall apply. Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such building drain shall be lifted by an approved means and discharged to the building sewer.

1. Building sewers shall be not less than four (4) inches in diameter and shall be laid with a slope (grade) of not less than 1/4 inch per foot. Building sewers shall be laid in the most direct course possible. They shall be installed in a straight line and on uniform grade, with a minimum cover of 18 inches. Wye type cleanouts shall be installed on all building sewers at the property line or any bend, and before entering the structure to be served. Only approved standard fittings shall be used.

2. Only the following types of pipe are acceptable for building sewers:

   Extra Heavy Cast Iron or Ductile Iron Soil Pipe shall comply with Commercial Standard CS188-59, with a coal tar pitch coating and rubber gasket type joints.

   Extra Strength Vitrified Clay Pipe shall comply with ASTM Des. 0200-687. Pipe joints shall be resilent gaskets, C425-667, Type III.

   Polyvinyl Chloride (PVC) Plastic Drain, Waste and Vent Pipe (DWV) Pipe shall comply with ASTM D 2665 Schedule 40, and may be jointed with solvent cement.

   Extra strength Concrete Pipe shall comply with ASTM C14-69, except as modified herein, the minimum wall thickness for four (4) inch pipe shall be 1-1/4 inches, and the absorption shall not exceed 6.5 percent. Joints shall be O-ring rubber gasket type conforming to ASTM DEs. C-443.

3. All force mains shall be constructed of ductile iron or steel pipe. The superintendent shall have the right to establish the quality, standard, size and other conditions which reasonably relate to the integrity of said line from freeze, damage, contamination of groundwater or creating of public nuisance. (1976 Code, § 13-213)