It is probably a function of soil characteristics including ph and
moisture levels. Some soils will eat metal pipe or grounds. Driven
grounds are not always very good unless you live on a salt marsh. If
you live in the desert surface area overrules conductivity and a Ufer
sunk in concrete is about as good as it gets.
-Roland
in San Diego where Ufer grounds are preferred but driven grounds are
accepted in some situations.
On Sat, 23 Dec 2006 01:48:11 +0000, you wrote:
::From: John Miller <jem@milleredp.com>
::>
::> > Really ? You're not allowed to drive a copper stake in the ground ? I
::> > would have thought the stake would be better ... less likely to be cut
::> > accidentally, and more likely to stay in contact with damp soil. AFAIK
::> > that's the only kind commonly used around here ... dry sand doesn't
conduct
::> > worth a hoot.
::>
::> The city here does not permit *any* metal in contact with the ground.
::>
::> John.
::
::Interesting. In Saint Paul, I was told to direct-bury soft copper tubing
for the natural gas run from the house to the shop. Gas inspector came out
and approved my installation before I backfilled it.
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