Math question....

Discussion in 'Homesteading Questions' started by Mutti, May 10, 2005.

  1. Mutti

    Mutti Well-Known Member Supporter

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

    MsSpot Well-Known Member

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    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. :D
     

  3. GRHE

    GRHE Mountain Ogre

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    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.
     
  4. Cosmic

    Cosmic Well-Known Member

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    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. ;)