A half gallon of water weighs approximately 4 pounds.
8 pounds of water in 1 US gallon
1 gallon of water weighs 8.2 pounds, so 32.8 pounds
80 gallons of water weighs about 668 pounds (about 8.35 pounds per gallon).
63,844.1 pounds.
One US gallon of plain water weighs 8.34 pounds.
4
8.33
705 gallons of water weighs about 5,883.2 pounds.
30 cubic feet of water at 8.34 pounds per US gallon equates to ~1,871.63 pounds of water.
About 8.35 pounds for one US gallon of water.
About 8.4 pounds.