Yea, 3' drainpipe is deceiving. It does seem extreme for the pond output.
The diffuser in the drainpipe was a joke.
I think doing a few DO tests is a good idea. Tho I don't think I NEED more oxygen, considering I do have a good bit of big largemouth that seem healthy. But I would like it to be able to support more fish and like I've said my main reason is to clean up the muck.
I know ft lbs per minute is not a real measurement, but my thinking is 60gpm is 480 lbs of water per minute. With 2.5' radius wheel, that's 1200lbs of force every minute. Or 20lbs per second.
I'm still trying to find specs as far as how much torque needed to spin the compressor.
Another question I have. The pond tapers from shallow at the input creek to about 9' deep across the back where the drainpipe is, with the exception of a hole near the back corner that goes to 16' deep. Would it be better to put the diffuser in the shallower water near the input creek, or in the deep hole?
