>
> Closed loop with a septic system leaching field over it could be
> considered. Even a greywater delivery field could help make sure
> thermal conductivity was maintained.
Yes this would be great for thermal condctivity. I sure wouldn't like to
search for and fix a leak though. PE pipe properly heat welded by true
professionals and pressure tested would be a good system with least
potential for leaks. I would trust such a system.
> Closed loop with a septic system leaching field over it could be
> considered. Even a greywater delivery field could help make sure
> thermal conductivity was maintained.