If the pool is rectangular and 4 feet deep then around 19,000 US gal
4270 gallons. (3.23 ft x 1/12 in/ft x pi x 7.5ft x 7.5 ft = 570.8 cu. ft or 4270 g)
3697 Gallons @ 80% of wall height
About 2,550 gallons.
956 gallons.
5,677 gallons
6247.5 gallons I think!!
If filled to the top, there would be approx. 7400 gallons of water in your pool.
20 ft round diameter is 10 ft in radius. Volume = pi x radiuis squared x height (in feet) 3.1592654 x 10 x 10 x 42/12 = 1105.74 cubic feet. 7.48 gallons per cubic ft gives 8,271.53 gallons for 42" depth.
17,820 gallons. More pool questions answered at bridgecitypools.com
approximately 4,440 gallons.
11,600
About 3,983 gallons.