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<br />"section 9.89 <br /> <br />section 1007 of t.he plumbin(] Code ~s <br /> <br />amended to read as follo\Vs: <br /> <br />II 'Section 1007 <br /> <br />(a) <br /> <br />Inadcqu~te~er Pressure. <br /> <br />Whenever the water pressure in the main or other source <br /> <br />of supply \'Jil1 not provide a water pressure of at least <br /> <br />15 pounds per square inch, after allowing for friction <br /> <br />and other pressure losses, a tank and pump or other <br /> <br />means which will provide said 15 pound pressure shall <br /> <br />be inst:v lled. <br /> <br />II , (b) <br /> <br />Excessive I'later Pressure. Hhere local water <br /> <br />pressure is in excess of 80 pounds per square inch, an <br /> <br />approved type pressure regulator preceded by an adequate <br /> <br />strainer shall be installed and the pressure reduced <br /> <br />to 80 pounds per square inch or less. For potable <br /> <br />water servi.ces up to and including 1-1/2 inch regulator~;, <br /> <br />provision shall be made to prev(mt pressure on t'he <br /> <br />building side of the regulator from exceeding main <br /> <br />supply pressure. Approved regulators with integral <br /> <br />by-passes are acceptable. Each such regulator and <br /> <br />strainer shall be accessibly located and shall have <br /> <br />the strainer readily accessible for cleaning without <br /> <br />removing the regulator or strainer body or disconnect:ing <br /> <br />the supply piping. All pipe size determinations shall <br /> <br />be based on 80 per cent of the reduced pressure. <br /> <br />.. <br /> <br />II I (c) ''Vater systems provided with a pressure <br /> <br />regulating device or check valve or water heating <br /> <br />equipment shall contain an approved, listed, adequately <br /> <br />sized pressure relief valve. <br /> <br />II , (d) <br /> <br />Each pressure l.^elief valve shall be an approved <br /> <br />automatic type with drain, and each such relief valve <br /> <br />-4- <br /> <br />-r ' <br />