250 gpm adds approximately how many tons of water per minute?

• A. 0.5 ton
• B. 1 ton
• C. 2 tons
• D. 1.5 tons

Answer: (C)

Think in terms of mass flow. One gallon of water weighs about 8.34 pounds. At 250 gallons per minute, the weight per minute is 250 × 8.34 ≈ 2085 pounds per minute. A short ton is 2000 pounds, so 2085 pounds per minute is about 1.04 tons per minute. So 250 gpm is approximately 1 ton per minute (slightly over).