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Just to make it easy on ourselves, we're going to assume that the slope is constant ...

the pool is 3' deep at one end, 8' deep at the other end, the bottom is flat, with a constant

slope and no breaks or level places. Then we can work it using the average depth of 5.5' .

1 cubic foot = 1,728/231 gallons

Volume = (18' x 36' x 5.5') = 3,564 cubic feet (= 132 cubic yards) = 26,660.6 gallons (rounded)

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Stephen Lackey

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2y ago

How many gallons to fill 20x30 pool 12ft deep end and 3ft on shallow

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Q: How many gallons of water fill an 18'x36' rectangular pool 3'deep to 8' deep?
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