I don't see why that wouldn't work and would be cheaper and easier to work
with than the clay type.

"Ray B" wrote in message
news:4rZZi.4449$NC.3728@trndny07...
How well do you think the flexible, corrugated, black plastic
septic-system pipe would work?

It's fairly thin-walled, so the heat transfer would be fairly good I would
think, and by being flexible, you could bury a bunch of coils, reducing
the amount of property that would have to be dug up.

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Ray Barkalow - First Rays Orchids - www.firstrays.com
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