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�eterm�ne fro tine leo the <br /> Defender Spill Containment (Ref.) <br /> Seat surface of upper drop tube <br /> 0 <br /> lX X <br /> i <br /> Upper Drop Tube Top of Tank <br /> Final Shutoff Volume'" <br /> 6 Z. <br /> Overfill Prevention Valve <br /> (U.S.T.) <br /> Lower. "B„ <br /> Drop Tube <br /> "Y>> <br /> E <br /> 1 <br /> 6" (152 mm) Max* <br /> Bottom of Tank Not to sale <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 /> Drop tube seat �� Final shutoff <br /> Q r Gallons "A" l surface to �g„ <br /> I bottom of tank volume height <br /> X (Multiply) - (Subtract) - (subtract) <br /> OPV Len 9th <br /> 9 <br /> 95 Typically 95% * «g„ © 3 Final f 15'/" (400 mm) offset <br /> _ volumee height <br /> subtract <br /> Final shutoff volume (subtract) - (subtract) <br /> Position and 6° (152mm) Tank bottom <br /> (gallons) 2'/z° (63.5 rnm) mounting clearance <br /> _ (equals) adjustment - (equals) <br /> tir <br /> Final Shutoff Volume Height Upper Drop Tube Length Lower Drop Tube Length <br /> 5 <br /> F. <br />