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DECEIVE® <br /> DROP TUBE CALCULATIONS for OVERFILL FLAPPER VALVE (12,000 GALLON) NOV 3 0 2017 <br /> Top of Riser with Adaptor Removed ENVIRONMENTAL HEALTH <br /> Top of Riser DEPARTMENT <br /> Upper Drop Tube "A" <br /> Tank Riser Pipe <br /> Top of Tank <br /> „B„ <br /> 95%of a <br /> Full Tank <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" 7-3/8"(PER TANK CHART) 95 % Full Tank Level <br /> C" (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 11,873 GAL.= 11,279 GAL. <br /> FLAPPER VALVE HEIGHT ABOVE BOTTOM OF TANK=106-5/8"(PER TANK CHART AT 11,275 GAL.) <br />