Recently we had a small drip in one tub that left an aqua blue stain on the porcelain. I thought that it might be acidic water degrading the copper. When I tested the water 4 separate times the ph was 6.5-7.0. ( we have 2 wells that we can switch between and I tested at the well and inside the house) . While I was at the Home show at the fairgrounds this past weekend I talked to one of the water treatment vendors and told him about it and that we have hard water, 150 ppm. He suspected that the house ground was connected to the copper piping but that the pipe that goes to the well was plastic. It is. He suspected that some electrolysis was going on. I also told him that in the past 3 years, we have had several pinholes in the small copper pipes in the cellar. When they were replaced the copper was very thin. If it is true that the ground goes to the copper pipes in the house, coould that cause the pinholes and blue stains? How should it be grounded? I will crawl into the space this friday to check.
Btw He quoted me $3200 for an iron and sulfur filter/ softener setup. And he could check for all that is necessary. Iron is only 0.3.
Btw He quoted me $3200 for an iron and sulfur filter/ softener setup. And he could check for all that is necessary. Iron is only 0.3.