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Pipe is generally cylindrical and the dimension refers to the inside diameter.

One cubic foot contains 7.48 gallons. The volume of a one foot long 20" diameter pipe is: pi(1.667/2)^2 = 2.18 cubic feet.

At 7.48 gallons per cubic foot the total volume is 16.3 gallons.

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โˆ™ 2010-06-23 16:35:27
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Q: How many gallons per foot for 20 inch pipe?
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