Beej, as a last resort, I've had to make my own L-shaped rods (good 'ol MAP gas!) after hitting limestone or granite. The hammer gets to be like hitting a brick wall with an aluminum baseball bat! Ouch!
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The sandstone in the pics above is relatively soft in comparison!
I
could drive 'em at about 100 strokes per inch, but I'm getting to old for that crap!
I've even been crafty enough to actually dog-leg a rod so that the top of it looks like it's going straight down, just in case the AHJ likes it that way...
John, A Ufer is a Concrete Encased Electrode. I've never used one, but I'm told they are the default and primary grounding means in Oregon (Someone here said that, I think). So a Ufer is, what 20' of copper in atleast 2" of concrete? What size copper? Pipe, Rod or wire?
Fred, shoulda bonded to the Plymouth like Steve is eluding to! Hee hee!
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Steve, gimme a minute to read all those links! You da man, BTW! (What you got, like 3100 posts or something?!!? *
jealous*)
BRB...
