A new customer has several rental units that I'm am becoming all to familar with. All built in the 50s, all 2 wire with no ground wires. He has asked for Gfci in kitchens and baths.
Do I just replace and label no ground, or is it code compliant to fish a single #12 solid insulated green wire to a clamp on a metal water pipe. All houses have copper pipes, and these are all grounded.
This is practical where the panel is on one end of the house and the baths or kitchens are on the other. I have seen it done around here, but wondered if it was a violation to have separate parallel ground paths, I felt it was safer to have the one ground to the piping, when the entire circuit wasn't going to be rewired. And the gfci tester would see a ground and trip it out. Sometimes this is easy to do, and sometimes a run to the panel and new 12/2 w ground is just as easy.
Is it worse to have this ground installed in this way, than to not have it all? What do yall think, it seems as if all these units are getting my way, and I just want to do what is it right and code compliant.
There are about 2000 homes here this age and all 2 wire without grounds and every time one sells the new owners are changing the kitchen and bath recepts out, without rewiring the hole house. Just wondered which way to go. thanks joe
Lighting the way