Now that I've had proper grounding installed in my breaker box, and have had my hot, cold, and gas pipes bonded to that ground, should I remove the cold water grounds that the previous owner installed? I didn't think to ask the electrician while he was here, however as I got into the shower I was wondering if it should be done.
I know the previous owner installed a ground wire from the kitchen outlet grounds to the cold water pipe below - should that be clipped and removed before I use that outlet? He had also originally installed a ground wire from the washing machine to the cold water tap, so I know there are a few of those around.