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assuming you are talking 1/2" on the inside diameter, or ID, then the answer is:

length = 3000 feet x 12 inches/foot = 36000 inches

Area = pi * 0.25^2 = 0.196 square inches cross-section

volume = length x area = 36,000 x 0.196 = 7068.58 cubic inches

Now convert this into gallons:

1 gallon = 231 cubic inches

7068.58/231 = 30.6 gallons

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14y ago
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7y ago

The answer will depend on the cross-sectional area of the tank.

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