Every service pipe must be laid sufficiently waving to allow not less than one foot of extra length and in a manner as to prevent rupture by settlement. The service pipe must be placed no less than seven feet below the surface and in all cases so arranged as to prevent rupture by freezing. Service pipes must extend from the curb box to the inside of the building; or, if not taken into the building, then to the hydrant or other fixtures which it is intended to supply. Type K copper tubing shall be used up to and including two-inch services. All underground joints are to be mechanical, unless otherwise approved by the city plumbing inspector. Joints on copper tubing shall be kept to a minimum, with not more than one joint used for service to 70 feet in length. All joints and connections shall be left uncovered until inspected by the city plumbing inspector and tested at normal water line pressure. All services over two inches shall be cast iron. Connections with the mains for domestic supply shall be at least one inch. One inch cast iron service connections with one inch gate valves and boxes shall be the smallest size permitted from the water main to the property line. Each cast iron service shall be rodded from the water main tee to the gate valve or as directed by the plumbing inspector.
(Prior Code, § 401.10)