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,r <br />L"'' � -e 3 t-'- 1, L F � 5"°O <br />Tank .anchoring: All tariks must be I-Inchored whenever thev 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 cubic feet of tank. <br />S'f inches high, x/_inches wide, x I 3' inches Lona, _ <br />�- 8a$.lcubic inches. <br />Divide this number by 1728 to equal 57:; cubic feet. <br />Line B Next convert the displacement to the vveiaht of water. <br />577 (from line A) cubic feet x 6_.1�veio <br />( `ht of 1 cubic foot of water) x 1.5 (fudge factor) _ <br />Syia i lbs of lift potential. <br />Line C Calculate weight needed to counter buovancv. <br />oI lbs. (Displacement weight from line B.) • l4,r6 c lbs. (Nveiaht of rani; from <br />manufacture) = lbs. Of soil needed to anchor tank._ <br />Line D WeiQht over the tank cover ne'-ded, plus safety 'tactor. <br />/b/' inches wide of tank cover x i8.? inches lone of tank cover, divided by 114 <br />_ L,kL Square feet of cover x 0.083 ( 1 inch in foot decimal) = /o. b cubic foot space of <br />I inch of tank cover. <br />Line E Calculated weight of 1 inch of space over entire cover, <br />io, 6 cubic feet of space ( from line D) x 100 lbs./cubic foot of= lobo lbs./inch space above <br />cover. <br />Line F Calculate inches of soil needed to counter buoyancy . <br />y/EV lbs. (from line C) divided by /dGo lbs. per inch of soil (from line E) = inche§ need over <br />tank cover. <br />