Here are the answers to practice problem No. 4.1. If the pump tank is 49 inches by 60 inches by 70 inches deep, calculate the gallons per inch.Answer
Convert length and width to feet.49 inches ÷ 12 inches/foot = 4.1 feet60 inches ÷ 12 inches/foot = 5 feetCalculate volume (cubic feet) in 1 foot of depth4.1 feet x 5 feet x 1.0 foot = 20.5 cubic feetConvert to volume in gallons.20.5 feet x 7.5 gallons/cubic foot = 153.75 gallons/footCalculate gallons per inch.153.75 gallons/foot ÷ 12 inches/foot = 12.8 gallons/inch2. The OFF float is at 62 inches and the ON float activation is
