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Determine dro tube len the - <br /> Defender Spill Containment(fief.) <br /> Seat surface of upper drop tube <br /> rrX„ <br /> Upper Drop Tube Top of Tank <br /> Final Shutoff Volume" <br /> Overfill Prevention Valve <br /> (U.S.T.) <br /> Lower <br /> Drop Tube <<B„ <br /> «Y„ <br /> "Y„ <br /> 6" (152 mm) Max* <br /> Bottom of Tank Not to Scale <br /> * if local codes require this distance to be smaller, <br /> subtract less than 6" (152mm) <br /> Calculate final shutoff volume <br /> Actual Tank Capacity To find Upper Drop Tube length "X" To find Lower Drop Tube length "Y" <br /> q �gt.� Gallons A„ r Drop tube seat <br /> 7 surface to "B" Final shutoff <br /> X (Multiply) bottom of tank volume height <br /> (Subtract) - (subtract) <br /> 95 <br /> Typically 95/o Final shutoff oPV Len th <br /> yp y ° ** "B" d5 3` 153/x" (400 mm,) offset g <br /> volume height <br /> Final shutoff volume - (subtract) - (subtract) <br /> r 30 <br /> (9(gallons) Position and 6" 152mm Tank bottom <br /> ) 2%' (63.5 mm) mounting ( ) clearance <br /> adjustment <br /> _(equals) = (equals) <br /> D � — B V 3 A „Y, <br /> Final Shutoff Volume Height Upper prop Tube Length Lower DropTub eLength <br /> 6 <br /> i ° - <br />