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P LUMBING C ODE § 5F-2-1 Exceptions: (1) Pipes, pipe fittings, plumbing fittings, fixtures or backflow preventers used for nonpotable services such as manufacturing, industrial processing, irrigation, outdoor watering, or any other uses where the water is not used for human consumption. (2) Water closets, bidets, urinals, fill valves, flushometer valves, tub fillers, shower valves, service saddles, or water distribution main gate valves that are 2 inches (50 mm) in diameter or larger.” (11) Subsection 608.3 of the Uniform Plumbing Code is amended by adding a third sentence to the first paragraph to read as follows: “Cylinder Expansion Tanks more than twenty-four (24) inches in vertical height, shall be secured against seismic movements within the upper top one third (1/3) of its vertical dimensions.” (12) Subsection 608.5 of the Uniform Plumbing Code is amended to read as follows: “608.5 Drains. Relief valves shall be provided with a drain, not smaller than the relief valve outlet, of galvanized steel, hard-drawn copper piping and fittings, CPVC, PP, or listed relief valve drain tube with fittings that will not reduce the internal bore of the pipe or tubing (straight lengths as opposed to coils) and shall extend from the valve to the outside of the building, with the end of the pipe not more than 2 feet (610 mm) nor less than 6 inches (152 mm) aboveground or the flood level of the area receiving the discharge and pointing downward. Such drains shall be permitted to terminate at other approved locations. Relief valve drains shall not terminate in a building’s crawl space. No part of such drain pipe shall be trapped or subject to freezing. The terminal end of the drain pipe shall not be threaded.” (13) Subsection 715.1 of the Uniform Plumbing Code is amended to read as follows: “715.1 Materials. The building sewer, beginning 5 feet (1524 mm) from a building or structure shall be of such materials as prescribed in this code.” SUPP. 11 (1-2022) 5F-7