I have pond 75' x 90' x 5' deep (about 34,000 cu ft of water).
Drain at bottom is 12" pipe.
How much pressure must the plug be able to withstand?...
Drain at bottom is 12" pipe.
How much pressure must the plug be able to withstand?...
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Five feet of water is about 2.16 pounds per square inch. For safety, I might make it 5 - 10 psig?