Xringer, I was thinking I would get more than enough thermal transfer in a coil of copper in 10' of my well and the coldest water will be at the bottom. As the copper coil heats the water it will rise and also as we use the pump for domestic water use it wil be replaced with cold water that comes into the pipe at 45 feet. I also would like the coil below the pump so if I have a pump failure it would not be any harder to pull than it is now. Rick
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