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FIGURE 3 <br /> IF PRESSURE/VAC" VALVE IS MORE IF VALVE IS <br /> THAN 1 FT. BELOW ROOF LEVEL OR LESS THAN 1 FT. EEXOW <br /> PARAPET TOP PARAPET TOP <br /> ° F1 <br /> I FT S ®� 3�,,t�. <br /> MSN. PRoDE s PARAPET TOP <br /> ve <br /> T� S`oQE SS <br /> ®P. <br /> ,fp <br /> ttPRES.SURE/ p o <br /> VAGtM VALVE <br /> IoW POINT <br /> FT DRAIN COCK <br /> IZ NU�1. HERE OR <br /> .✓ <br /> CASE 1 <br /> RECaMMMUM ALL MANIMU S HAVE ELBOWS CASE 2 <br /> SO THAT TIGHTENING OF UNIONS DOES CASE 4 <br /> CASE 3 NOT PULL VENT RISERS UP. fs <br /> 1 <br /> '{e eR° <br /> Ft Mt11' i <br /> Q FT <br /> M11�. <br /> 1z Fs <br /> To F OCCSgo VENT RISER MANIEMD AND PRESSURE/ <br /> —y„ VACUtI"! VALVE - ALTERTE <br /> stogy <br /> e b® <br /> . � <br /> GENERAL ARRANGEMEVTS <br /> �o <br /> S4®tE <br /> DRAIN COCK <br /> S OR h" CF�JQC <br /> VALVE GASOLINE VENTS ONLY <br />