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Yan �O;P- rac- <br />Measure & record "A" and "Z," and then peform the following calculation: <br />Drop tube seal surface to the bottom of the tank <br />- (subtract) <br />Z " Upper drop tube flange to the edge of the upper tube adapter <br />- (subtract) <br />4.5" Reference offset <br />_ (equals) <br />r„ <br />q <br />1` <br />Final shutoff volume height <br />Locate the final shutoff volume <br />height on the tank chart <br />Use the tank chart provided by the tank provided by the tank <br />manufacturer to record and calculate the following: manufacturer, and record the <br />�f gal Final shutoff volume <br />(divide by) <br />3li gal Actual tank capacity <br />X (muliply by) <br />100 <br />> _ (equals) <br />a <br />o1 44 a % Final shutoff volume percentage <br />L '39gi <br />gal Actual tank capacity <br />- (subtract) <br />' / gal Final shutoff volume <br />_ (equals) <br />'19 L/ gal Ullage volume remaining f— <br />closest corresponding volume. <br />If the final shutoff volume <br />percentage is 95% or less, the <br />installation conforms to FFS and <br />industry recommended practices. <br />The final Shutoff Volume Percentage may <br />be greater than 9S% as long as the ullage <br />volume remaining is greater than or <br />equal to 250 gallons, so that "...none of <br />the fittings located on the top of the tank <br />are exposed to product due to <br />overfilling," according to EPA 40 CFR Part <br />280. The installation must also meet all <br />applicable regulatory requirements, and <br />must be acceptable to the Authority <br />Having Jurisdiction (AHJ). <br />� 17 <br />�,¢}.�'¢�� <br />� �Y�� ^vis <br />-N'�Yy��. <br />