How much water in a 48inch 12foot round pool
About 5,730 gallons.
6016 Gallons
About 7,645 gallons.
It depends on the depth of the water. The hydrostatic pressure increases with depth.
If you filled it all the way to the top (40") it would hold about 2,830 gallons of water.
Approx 3437 Imperial gallons.
At 7.48 gallons per cubic foot that is 3.14x30x30/4x52 x7.48 /12 = 22,900 gallons
18000
Walls are able too resist water because the walls are water proof!
To fill it all the way to the top (33") would require about 2,336 gallons of water.
264.172 gallons.