"If you don't have copper water pipe how do you ground?"
Ufer ground (if available).
(2) 8' Grounds if the Ufer's not available.
And a #4 copper jumper to anywhere on the copper water piping system (hot or cold). Preferrably do the grounding near the water meter as to making it easier for the AHJ to find (and see). Also, don't forget to jump out the hot & cold at the hot water heater.
[This message has been edited by ShockMe77 (edited 09-21-2006).]
