Fayette Specifications ordinance (§ 710.090)

All private sewers shall have an interior dimension in diameter of four (4) inches. They shall be constructed of the best quality of vitrified double-strength, salt glazed sewer pipe, with socket joints, made water-tight with hydraulic cement mortar. They shall be laid to a true line and grade, and their inclination, where practicable, shall not be less than two (2) feet in one hundred (100) feet. They shall, whenever possible, connect with the joint district or district sewer at "Y" junctions provided for them; but, if it is necessary to break into a joint district or district sewer for the purpose of connecting with it, a joint of pipe must be taken out, and a new joint, with a "Y" junction, inserted in said sewer. All excavations within the lines of any avenue, street or alley must be braced when necessary to prevent caving and must be properly protected at night with a substantial barricade at least three (3) feet high and a red light shall be placed at each end of the excavation or obstruction and kept brightly burning from sunset to sunrise. The upper end of private sewers not to be immediately connected with the house plumbing shall be securely guarded against the introduction of earth or other substances by means of brick and cement or other water-tight and imperishable materials. All materials used, and work done in the construction of private sewers shall be subject to the inspection and approval of the Sewer Superintendent or Building Inspector; and no completed work shall be covered until after such inspection and approval. The backfilling over private sewers shall be done with the utmost care, and in such manner as to obtain the greatest possible compactness.