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Septic/Pump Tank Buoyancy <br /> WD"wMert1250VOWseptic tank and 1250 gallon pump task <br /> instructions: Q=read input Q =sef- �mo wyr,ujusn <br /> 1) Enter the empty weight of the tank. <br /> 1oi�oo lbs <br /> 2) Enter the omernat dimensions of the tank - <br /> Length 121 I indm <br /> l <br /> Hetet 61 Inches <br /> 3) Enter the number of risers on the tank,and the riser diameter. <br /> p of risers 2 <br /> riser diameter 24 Inches (typically 24") <br /> 4) Enter the soit density- (lase 100 lbs/ft3 for a conservative calculation.) 70 lbs/fe dry clay(rarely fatmM <br /> soil&4U* 100 tbslft3 100 ft/ffft sand <br /> 115 tbs/fC;wet day <br /> 120 ft/ft?wet sand <br /> Based.on the infomation given,the folk Mq minhMM Soil coyer amounts are required to avid tank floatation. <br /> Soft sat"ted up to the lid of the to* SaIL sat orated to gads <br /> 1.4 ft.of cover is req'd 3.8 ft-of coyer is read <br /> Calculations are deemed reliable for estlmatfon purposes <br />