Muddyfork on your closed loop using the pond as a heat exchanger was the loop pvc or copper pipe? Also how much of the pond did you cover with the piping? This is the type of installation I am heading for and maybe using the slim jim to keep the exchanger more confined. I also wonder about people walking on the piping if it will be damaged, sometime it may be necessary to seine or swimmers may be in the water. If a person could keep the piping confined that would be a better installation I believe. Thanks to all for any information.

deaner [email protected]

paul weatherholt