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1. Brass or bronze valves on sprinkler risers mounted to the exterior of the <br />building may be left unpainted. <br />2. Where OS&Y valves on the detector check assembly are the only control <br />valves, at least one OS&Y valve shall be painted red. <br />(2) Section 6.2.9 is hereby revised to read as follows: <br />All connections to private fire service mains for fire protection systems shall be <br />arranged in accordance with one of the following so that they can be isolated: <br />(1) A post indicator valve installed not less than 40 ft (12 m) from the building <br />(a) For buildings less than 40 ft (12 m) in height, a post indicator valve <br />shall be permitted to be installed closer than 40 ft (12 m) but at least as far <br />from the building as the height of the wall facing the post indicator valve. <br />(2) A wall post indicator valve <br />(3) An indicating valve in a pit, installed in accordance with Section 6.4 <br />(4) A backflow preventer with at least one indicating valve not less than 40 ft <br />(12 m) from the building <br />(a) For buildings less than 40 ft (12 m) in height, a backflow preventer <br />with at least one indicating valve shall be permitted to be installed <br />closer than 40 ft (12 m) but at least as far from the building as the <br />height of the wall facing the backflow preventer. <br />(5) Control valves installed in a fire -rated room accessible from the exterior <br />(6) Control valves in a fire -rated stair enclosure accessible from the exterior <br />(3) Section 10.1.5 is hereby added as follows: <br />101.5 All ferrous pipe and joints shall be polyethylene encased per AWWA <br />C150, Method A, B, or C. All fittings shall be protected with a loose 8 -mil <br />polyethylene tube or sheet. The ends of the tube or sheet shall extend past the <br />joint by a minimum of 12 inches and be sealed with 2 inch wide tape approved for <br />underground use. Galvanizing does not meet the requirements of this section. <br />Exception: 304 or 316 Stainless Steel pipe and fittings <br />(4) Section 10.4.1.1 is hereby revised to read as follows: <br />Ordinance No. NS-XXXX <br />Page 28 of 31 <br />11 A-30 <br />