Service pipe and fittings shall be of brass, copper, PEX tubing in sizes through one and one-quarter (1 1/4) inch, and cast iron pipe properly coated may be used for diameters one and one-quarter (1 1/4) inch or greater, when approved by the manager. All materials used in service lines, except valves and similar devices shall be of like material, except where otherwise approved by the manager. (Ord. 97-16 § 11, 1997: Ord. B-606 § 19; April 3, 1944).