1976.10.18 ORD 1976-132 - Laserfiche WebLink

Home

effective means . The air test shall be made by attaching an air compressor or test apparatus to a suitable opening and closing all other inlets and outlets to the sewer and/ or drain under test by means of proper testing plugs. Air shall be forced into the system until there is a uniform pressure of five (5) pounds per square inch in the section being tested. The system shall be considered satisfactorily air tested if the pressure therein remains constant for fifteen (15) minutes without the addition of air. (2) The portions of any buried sewer more than fifty (50) feet from a well or buried suction line shall be of adequate size and constructed of castiron, vitrified-clay, cement-asbestos , concrete or other pipe material acceptable in the State Building Code . Clay pipe and clay pipe fittings shall conform to A. S .T.M. specifications for standard strength or extra strength clay pipe and clay pipe fittings. No building drain or building sewer shall be less than four (4) inches in diameter. (3) The space between the bell and spigot of vitrified-clay pipe shall be packed with oakum, hemp or jute or otherwise prepared so as to form a concentric opening uniform in width around the pipe, which opening shall be filled with Portland cement mortar or other acceptable sewer-joint compound. Pour joints are recommended. Where cement joints are used they shall be carefully pointed on the outside and left smooth on the inside by drawing through them a swab or scraper. Construction of the line shall be such as to secure water-tight and root- tight joints, free of obstructions, and shall provide a grade of not less than 1/8 inch per foot. The ten (10) feet of sewer immediately preceding the septic tank shall not slope more than 1/4 inch per foot. No 90° ells shall be permitted, and where the direction of the sewer is changed in excess of 22 1/2° , accessible cleanouts shall be provided. -5-