Mild shock from drain pipe.
Posted by Steve Selle on January 13, 2003 at 14:03:00:
A friend of mine installed a pedestal sink in which the drain pipe is thin walled metal going into cast iron in the wall. He was having trouble tightening the connections and checking for leaks when he noticed he was being shocked with the hot water on. There is an electric water heater and the old one was removed to locate a new one at a new location. What could cause a low voltage shock from a drain pipe?

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