Resolution 894 - Laserfiche WebLink

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e -23' . 1• • , SECTION 2: BUILDING SEWERS 1. The building sewer, and all piping to the point where the disposal field begins, shall be of water tight piping and joints. Joints between this piping and other appurtenances of the system shall be water tight. -The use of perforated pipe or its equivalent is prohibited. 2. No building drain or building sewer shall be less than four inches in diameter. 3. The buried or concealed portion of any building sewer, building drain or branch thereof shall be located at least 20 feet from any well shall be constructed of cast iron pipe with air tested joints. The air test should be made by attaching an air compressor or test apparatus to a suitable opening and closing all other inlets or outlets to the sewer and/or drain under test by means -of -prop;er --testing-plugs;—Air- -shall be forced Into the system until there is uniform pressure of five pounds per square inch in the section being tested. The system'shall be considered satisfactorily air tested'if the pressure therein remains constant for 15 minutes without the addition of air. - • 4:' The portions of any buried sewer more than 50 feet from a well shall be *constructed of cast-iron, vitrified clay, cement -asbestos, concrete or other City approved pipe material. 5. All joints between -pipes and fittings in the building sewer shall have water tight and root tight joints and ' shall be air . tested.- Portland cement mortar joints " shall not be allowed. 'mines shall provide a.grade of not less than one-eighth inch per foot. All changes. of grade shall be by means of long sweep ells. Where -long sweep ells are not used and where the direction changes by more than 22-1/2 degrees, accessible cleanouts shall be provided. -23' .