I'm still working on that Xray thing here Ghost ,and i should be so lucky as to be privy to such all inclusive inspection process Greg.

When the timing works out, i've made onto the grids before the 'crete is poured, but that is not as often as it should be.

And then there's other considerations. Was it all over some plastic or hard insulation barrier? How much of it all really makes earth contact?

When i'm trying to pass inspection, it there a way to prove it's efficacy , short of one of those expensive Fluke meters?

~S~