Can it be the hot water heater?
We remodeled a couple of years ago. We had our contractor move the hot water heater from inside the house to the attached garage.
About a year ago I started to notice on one of the new faucets that some green verdigris had begun to appear. Hmm... Other than cleaning it off, I did nothing. Eventually the green gunk reappeared. After a while I saw it on another faucet. I checked all 4 new faucets (none of them were cheap, btw) and realized they all had that green stuff.
I don't know what could be the cause. We never had this problem before and have lived here for 12 years. The only thing I can think of that affects all 4 faucets is that the water heater was moved. Could it be something in the pipes that were used in the move to the garage? Or maybe the heater needs to be drained? We're in SoCal and have very hard water, but have lived with it all these years.
I want to fix this but don't know how. Can anyone help?