Went on a repair and the customer said he got a shock off the shower fixture. I tested to see if the water pipe for it was grounded and was getting weird ohm readings. Found later that someone replaced part of the water pipe in the attic with a PVC type which isolated half the water pipe from ground. I ran a #4 ground wire to connect them which grounded it. But not sure where the voltage was getting picked up in it before. Maybe through inductance from wires crossing over it? The customer said he got a good shock off it when he touched the shower head and the metal edge on the shower door. (The shower door edge was not tied to ground at all). Kinda strange.
Now that the shower water pipe is grounded there should be no way it can become energized. Any opinions on what might have happened and whether its completely safe now?


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