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Arra l S5P <br /> Tank Anchoring: All tanks must be anchored whenever they are installed in a saturated <br /> conditions. Using soil as the anchor has become an acceptable alternative to concrete. <br /> • Flotation potential is the displacement of the tank calculated by its volume in cubic feet. <br /> Line A Calculate cubicfeetof tank. ire y <br /> 3 <br /> , _(__inches high, x inches wide, x17 3 inches Long, _ `W"cubic inches. <br /> � <br /> i 3 <br /> Divide this number by 1728 to equal cubic feet. <br /> Line B Next convert the displacement to the weight of water. <br /> �? (from line A) cubic feet x 62.4 (weight of 1 cubic foot of water) x 1.5 (fudge factor) _ <br /> 57 t e T o lbs of lift potential. <br /> Line C Calculate weight needed to counter buoyancy. /0v <br /> ! 37 <br /> 7e 0 lbs. (Displacement weight from line B.) -//°c° lbs. (weight of tank from <br /> manufacture)= lbs. Of soil needed to anchor tank.// o <br /> Line D Weight over the tank cover needed, plus safety factor. <br /> 7_41inches wide of tank cover x /inches long of tank cover, divided by 144 <br /> yy, Square feet of cover x 0.083 ( 1 inch in foot decimal) _ cubic foot space of <br /> r' 1I—nch oftank cover. 3 ' 7 <br /> Line E Calculated weight of 1 inch of space over entire cover. 3-70 <br /> 3. '7 <br /> cubic feet Of space ( from line D) x 100 lbs./cubic foot of— 7 9�% lbs./inch space above <br /> cover. <br /> Line F Calculate inches of soil needed to counter buoyancy . <br /> �— 7 2. — <br /> ibs. (from line C) divided by %albs. per inch of soil (from line E) =inches need over <br /> tank cover. <br /> I e— P- <br />