How do you figure volume of water in a pool in gallons....24' round by 4' deep...?? Need to order new filter. Thanks DEE

I don't know how to figure that, BUT my pool is the same size and it holds approx. 12,000 gallons. At least, that's what it said on the box.

One gallon = 231 cubic inches. Volume would be: 12 x 12 x 4 x 3.14159 = about 1810 cubic feet or 3,125,000 cubic inches which would be about 13,500 gallons. Since you likely only are supposed to fill it to 3 1/2 feet deep, the 12,000 gallons is just about right on the mark.

Color me confused. I don't know what a 24' round is. Must be a fancy technical term. :no: Basically you must compute the volume of a cylinder in cubic feet and then convert that to gallons. The formula to compute a cylinder volume in cubic feet is: V = 3.14 x (radius squared .... dimensions in feet) x height ..... dimensions in feet There are 7.481 gallons per cubic foot @ 60 F. Example: Your pool is 24 feet in diameter (distance across the entire pool) and 4 feet high. The radius is half the diameter in this case 12 feet. Therefore: V = 3.14 x 12 x 12 x 4 V = 1808 Cubic Feet 1808 Cubic Feet x 7.481 = 13,525 gallons This more or less the way to compute the volume in your pool, minus splash and wave height, assuming no kids or dogs afloat.