AC,
Yes I was just on that page myself. I love diagrams. Those bore holes are at 120 feet. Boy that is deep.
Random thought, if acid is the problem why can I not dump some powdered line into the bore hole as im filling it with sand? Maybe even some sea shells that will release lime over a long period of time?
DX - Direct Exchange Equipment Options This site claims it 25% better than water loops.
NO ONE does DX around my area even though we have awesome ground for it, strange.