> So, your piers probably have rebar in them.. if they are tied to the
> bolts? Actually, interestingly, for a Ufer type ground, all the
> metal doesn't have to be connected.
Not a good idea. You don't want the possibility of an arc inside the
concrete by not having a solid connection between metal parts.
Just there has to be at least 20
> ft total. The idea is that it provides a relatively high
> conductivity path within the concrete. So you might be able to just
> use lugs on the attachment bolts.
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