Here are the answers for today's practice problem.1. Determine the gallons per inch.
Convert the width and length to feet and then calculate gallons per inch the same as in previous problems: Area x 1 foot x 7.5 gallons per cubic foot ÷ 12 inches/footSo, 49 inches ÷ 12 inches/foot = 4.1 feet and 68 inches ÷ 12 inches/foot = 5.67 feet4.1 feet x 5.67 feet x 1 foot x 7.5 gallons/cubic foot ÷ 12 inches/foot = 14.5 gallons/inch2. If the pump runs for three minutes and the effluent levels measured from the surface change from 66 inches to 73.5 inches,
