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You can calculate the number of acres that can be drained with a known pipe size by completing the three fields below and clicking "Calculate."
Notes: GPM = Gallons per minute. CFS = cubic feet of water per second.
Drainage Coefficient(in/24 hours)
Note: Drainage coefficient = Rate of water removal in a 24 hour period in inches.
You can also calculate pipe size with known acres to be drained.