Blue Stain Around Sink Drain

RE: Blue Stain Around Sink Drain Post By kvhsun (Guest Post) (05/15/2008) Try white vinegar, let it sit for a little while and then scrub with a kitchen sponge with the scrubby on one side. Report Spam or Abuse RE: Blue Stain Around Sink Drain Post by bcgrote (11) | (03/10/2008) Contact I have this in my shower. One plumber says it might be from the flux used when we had a copper repiped. He had no clue how to remove it though. We have VERY hard water, and the deposits just laugh at CLR. I was able to remove a similar stain many years ago in another building, but this may require nuclear strength cleaner. I'm also going to call the company who put it in and find out what kind of flux was used, perhaps there is a flux cleaner or remover I can get. Straight rubbing alcohol didn't work for this stuff like it does for regular soldering flux. Report Spam or Abuse RE: Blue Stain Around Sink Drain Post by gouligann (24) | (10/04/2006) Contact try CLR, you can get it at Walmart, Kmart, most grocery stores. Use it full strength. It won't hurt the finish... it works on mine. The blue stains on mine are because my water's ph is to acidic.. Report Spam or Abuse