All installations of house service lines shall comply with the following.
(A) House service pipe must be laid with sufficient waving to allow not less than one foot extra length per 200 feet and in a manner so as to prevent rupture by settlement.
(B) House service lines must be placed not less than seven and one-half feet below the surface and arranged so as to prevent rupture by freezing.
(C) A shut-off or other stopcock shall be used and placed so as to be protected from freezing.
(D) Type K of minimum three-fourths inch copper tubing shall be used for runs. It is recommended that type K of minimum one-inch copper tubing be used for runs from 50 feet to 150 feet, and type K of minimum one-half inch copper tubing be used for runs from 150 feet to 300 feet.
(E) All underground joints are to be mechanical (compression or flared, not sweated) unless otherwise approved by the city inspector.
(F) Joints in copper tubing shall be kept to a minimum, with not more than one joint used for service up to 70 feet in length.
(G) All joints and connections shall be left uncovered until inspected and tested at normal water line pressure.
(H) All service over two inches shall be of cast iron.
(I) Connections at mains for domestic supply shall be at least one inch.
(J) No water pipe shall be connected with any pump, well, tank, or piping that is connected with any other water supply other than the municipal system.
(K) No person shall permit water from the water system to be used for any purpose except upon the owner’s premises unless written consent is first obtained from the city.
(L) As an alternative to copper tubing set forth hereinabove, the following materials may be used for water services for pipe up to and including two inches in diameter, as follows.
(1) Polyethylene. The tubing shall be made from virgin, ultra-high molecular weight polyethylene resin meeting the requirements of Type III, Grade P3, which also meets the requirements of P34, Class C material as described in ASTM D-1248-68, Specifications for Polyethylene Molding and Extrusion Compounds. Flow rate, measured by extrusion rheometer, shall not exceed 0.25 grams per ten minutes, as determined at a test temperature of 590°F (310°C) using a plunger load of 27.5 pounds, according to the procedure outlined in ASTM D-1238-65T, Measuring Flow Rates of Thermoplastics by Extrusion Plastometer. Dimensions and tolerances shall meet the values listed in the ASTM Polyethylene Water Service Tubing Specifications. Standard dimension ratio shall be SDR-9.
(2) Polybutylene. Tube shall be made from virgin ultra-strength polybutylene plastic, ASTM material designation PB2110. This is Type II, Grade 1 polybutylene plastic, with a hydrostatic design stress of 1,000 psi for water at 73.4°F. Dimensions and tolerances shall meet the values listed in the ASTM Polybutylene Water Service Tubing Specification. Standard dimension ratio shall be 13.5.
(3) Pressure rating. Tubing shall be rated for 160 psi working pressure at 73.4°F for water.
(4) Workmanship. Surface shall be homogeneous inside and outside and completely free of irregularity. Random testing shall be performed at intervals during all production runs to assure uniformity in all respects. The tubing shall carry the National Sanitation Foundation seal of approval for drinking water.
(5) Marking. Pipe or tubing shall be marked with embossed lettering at intervals of not more than two feet, and marking shall include nominal size; manufacturer’s name or trademark; machine identity; pressure rating for water at 73°F, 160 psi; ASTM material specification; standard dimension ratio; the National Sanitation Foundation seal of approval for drinking water; and the ASTM specification reference.
(6) Guarantee. Pipe or tubing shall be guaranteed in writing against rot, rust, corrosion, and defects for 50 years from date of installation, with pipe replacement and labor cost warranted in writing for 25 years from date of installation.
(7) Connections. All connections shall be made with products used with copper water services. There shall be no jointing of the tubes under the traveled roadway, but joints will be allowed elsewhere up to one joint per 50 feet of tube.
(1997 Code, § 18.14) Penalty, see § 51.99