> They talk about using a 1/2 inch ground rod. I have read
here on TT
> that 5/8 ground rod was the size of choice.
I doubt that would make much difference, certainly not
anything significant.
> And, they state that the drill tip that is used is
slightly larger than
> the ground rod itself, which will make a hole in the soil
that is
> larger than the rod, thus reducing effective ground
contact.
I also question the claims it is BETTER than a driven rod.
They talk about a slurry. Are you sure they don't tell
people to wet down the soil as it is drilled?
73 Tom
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