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[This message has been edited by rpxlpx (edited December 03, 2002).]
Yes, I have a grounding wire that is going outside. I am putting either PVC or copper plumbing back in.
Any copper plumbing you install should be bonded back to the bonded buss bar in the service or building disconnecting means. In order to serve as a grounding electrode for your home the clamp should be attached to an underground metal water pipe within five feet of were it enters your home. There must not be any plastic pipe or insulating fittings between the point of attachment and the underground piping. The best practice is to make the grounding connection on the supply side of the first control valve in the water line. Since no one is going to cut in to a pipe they can't shut off that prevents later plumbing work from leaving the home ungrounded.