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The formula for volume is (0.785 x diameter squared) x (depth) x (7.48). There are 7.48 gallons in 1 cubic foot. .785 x 15 ft = 176.625 sq ft 176.625 sq ft x 4 ft = 706.5 qu ft 706.5 qu ft x 7.48 = 5284.62 It would take 5,285 gallons for a round 15x4 pool.

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17y ago

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