On Mon, 3 May 2004 18:38:26 -0600, Grillo's wrote:
>The system uses hollow rods you drive down into the rocky soil (using a long
>rock drill bit).
>You then pour chemicals inside the rod. The chemicals seep into the
>subsurface and
>lower the impedance.
Yes, BUT:
As I understand it, chemical systems require routine maintenance to maintain
the chemical balance of the soil around the ground rod. Right?
Jim K9YC
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