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DROP TUBE CALCULATIONS for OVERFILL FLAPPER VALVE (8,000 GALLON) <br /> Top of Riser with Adaptor Removed <br /> Top of Riser <br /> Upper Drop Tube "A" <br /> Tank Riser Pipe <br /> Top of Tank <br /> "B <br /> le 95% of a <br /> Full Tank <br /> (U.S.T) <br /> Lower Drop Tube <br /> =45° <br /> 51/2" <br /> Bottom of Tank <br /> Measurement Value Description <br /> "A" (Determined at Tank Installation) Distance from the Top of the Riser to the Inside of the Top of the Tank <br /> B 6"(PER TANK CHART) 95 % Full Tank Level <br /> (Determined at Tank Installation) Distance from the Top of the Riser to the Bottom of Tank <br /> Calculations <br /> 95%TANK CAPACITY=0.95 x 8,531 GAL.=8,104 GAL. RECEIVED <br /> FLAPPER VALVE HEIGHT ABOVE BOTTOM OF TANK=108"(PER TANK CHART AT 8,104 GAL.) NOV 2 9 2017 <br /> ENVIRONMENTAL HEALTH <br /> DEPARTMENT <br />