Thanks for the heads up. At the most, I would be willing to run my pool pump (220V) through the 625 gallon tank (probably more like 550 gallon usable filter volume). I also would rather not run the pump continually (24/7). I will investigate the flow of the in ground pool pump, and limit the fill volume to correspond with running that pump approximately 8 hours daily. I don't necessarily need the water to be crystal clear, shooting more towards a sustainable pond. I also don't need to swim in it, I just need to keep the fish healthy and support naturally occurring visitors (frogs, toads, dragonflies, ...). I'm OK with limiting the pond volume via partial filling of the pool to accomplish that goal within the constraints imposed by the equipment and materials I have on hand. I intend to add plants as well, but that will happen as time and energy permits.
Again, thanks for the heads up: I will obviously need to do some investigation and calculations.
Again, thanks for the heads up: I will obviously need to do some investigation and calculations.