More info.
The circuit panel is in an unfinished basement. I can see all the plumbing and follow the ground wire through the house. The gruond is connected to the water line within 5 feet of entering the house. The preasure valve is bonded around. The water heater is gas and the hot and cold are bonded at the water heater. One of the water spigots is less than 5 feet from where the ground wire connects to the water pipes.
The house is less than 3 years old, but they just moved in. You did just give me an idea though. I once saw a washing machine that had a grounding problem and caused people to get shocked just by touching it. I'm going to look at that before I drive ground rods.
