rubob
Member
- Location
- Asheville North Carolina
I got a call from a fellow who said that when the plumber changed his pressure reducing valve it sparked when he installed it. I went to the home to check it and sure enough there are up to 5 amps of current on the water line which is acting as the grounding electrode. In order to isolate it, I shut off the individual circuits only to find that the current flows even with the main service disconnect off. I figured there must be something wrong up on the power company pole but the power company said it was OK. Any thoughts what would cause this?