I have inspected many pools over the last 10 years as an AHJ and I have never seen stray voltage a problem with pools that have rebar in the gunite or pools with metal sides. The only time I have seen stray voltage problems is with the fiberglass pools. There have been at least 2-5 times I have heard about these problems. The one pool had 15-30 votlts between the handrail into the pool and the concrete deck. Another pool had over 50 volts from the deck to the wet niche light.
