Determining pool volume

[KurtV]

The forumla for a rectangular pool is:
length (in ft) x width (in ft) x average depth (in ft) x 7.48 (gallons per cubic foot) = volume in gallons.

Using BleachCalc and assuming an average depth of 5.75 feet, I get just under 28000 gallons. The steps probably only add about 300-400 gallons.

You can change Michael's BleachCalc from the metric to the imperial system by selecting "settings" from the "more calcs" menu.

[mrmrk49]

If you want a real accurate number, you'll need to measure it:

measure the depth of water in a line down the center of the pool every 1 foot (ignoring the stairs for now) , you should end up with 37 measurements (0 ft, 1ft, 2ft, .... 35ft, 36ft).

Calculate the "average" depth for each 1 foot long x 18 feet wide section by averaging the depth reading at start and end of that 1 foot section but subtracting maybe 2 or 3 inches for rounding at the sides of the pool. Then multiple this average depth for this section by 18' x 1' to get xxx cubic feet for this 1 ft long section

Do this for all 36 sections, add up all 36 values of cubic feet, multiply by 7.48 gallons/cu ft to get gallons.

You'll need to 'fudge it a bit for rounding in the deep end especially, and also the stairs, but this shoudl get you within 5% of real value