There isn't enough information to answer your question. What is the conduit by which the water will be passing through? 1/2" copper, 3/4" PEX, etc.
Errrh, would it be a gallon of water?
Based on the calculations in the related question (How many cubic feet of water vapor equals 1 pound?) using the Ideal Gas Law, 1 pound of water will be 27.24 cubic feet at 1 atmosphere pressure and 100°C (212°F).1 gallon of water is 8.3454 pounds, so at the temperature 212°F and 1 atmosphere pressure, 1 gallon will generate 227.33 cubic feet.
1 US gallon = 0.13 cubic feet
One gallon of water equates to about 0.133 cubic feet.
a gallon US equals ~0.13 cubic feet. An imperial gallon equals ~0.16 cubic feet.
2,134.88 cubic feet of water.
No. One gallon of water equates to 0.13368 cubic feet.
THE GALLONS have NO Bearing on the pressure it would have to do with the HEIGHT and then if you wanted to know the WEIGHT you would take the 1,500 gallon and times it by 8.33
There are 7.48 gallons in one cubic foot. So, there are 0.13368 cubic feet per gallon
At 300 feet of water depth the pressure is about 130 psi
Just the liquid itself would occupy about 0.1605 cubic feet.
299,200,000 gallons of water.