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opteril)Ille drop IU�Pi�P.n(t}�In ♦ 7�` /$�, ��A. <br /> Defender Spill Containrhent(Ref.) <br /> Seat surface of upper drop tube <br /> 0 <br /> "X" <br /> Upper Drop Top of Tank 1 <br /> P Tube__, <br /> Final Shutoff Volume— <br /> i <br /> S <br /> Overfill Prevention Valve <br /> i Lower <br /> Drop Tube <br /> i - <br /> 6"(152 mm) Max' <br /> Bottom Of Tank Not to Scale <br /> If local codes require this distance to be smaller,-- <br /> OO subtract less than 6"(152mm) <br /> Calculate final shutoff volume 4-oy" TubC 1,.',2 <br /> Actual Tank Capacity To find Upper Drop Tube length"X" To find Lower Drop Tube length"Y" <br /> v�3 GallonsA„ Drop tube so.ii <br /> surface to B, 1 6 n Final shuloff <br /> X (Multiply) bottom of lank volume height <br /> - (Subtract) - (subtract) <br /> Typically 95%- Final shutoff OPV Length <br /> 15/< (400 mm} Onset <br /> Final shutoff volume volume height <br /> (subtract) - (subtract) <br /> ` — -- <br /> (gallons) Position andTank bolinm <br /> 2'/z"(63.5 mm) mounting 6"(152mm) clearance <br /> _(equals) adiustment <br /> B =(equals) <br /> Final Shutoff Volume Height "X" <br /> upper Dmp Tube Length u ���.s <br />