Home > categories > Minerals & Metallurgy > Copper Pipes > The copper laundry room pipe from which excess water drains into a hole has green corrosion around the tip?
Question:

The copper laundry room pipe from which excess water drains into a hole has green corrosion around the tip?

Should I be concerned about this or is it just a normal kind of rust that is happening? The house is only three years old, and this is the only form of green buildup that I see on the copper piping. This pipe, in particular, is one that is open on the end where I see the corrosion, so I‘m assuming it‘s happening from all that draining moisture, but how do I clean it? Thanks for your help, fellow Yahooliganswerers!

Answer:

Yes, it's just oxidisation. Iron steel rust, aluminium develops a white powdery finish and copper goes green. Nothing to worry about, you might be able just to rub it off or sometimes a scrub with fine wire wool will do it. For a while. If you want to stop it happening again you could lacquer or paint the pipe so air can't get at the metal, or even just wipe it with grease.
I don't think you should be overly concerned. Normal copper pipe or tube will always develop a coating of verdigris where water or any domestic drainage occurs if it comes into contact with atmospheric air. It's a natural chemical reaction / substance which develops with copper. Some copper water supplies develop a coating of verdigris internally in the pipe but you don't see it. If you definitely decide to clean it off the pipe use 0000s steel wool which will remove the green and polish the pipe. After that you can spray the clean pipe with a coating of clear lacquer to preserve the shine.
Like already said, the front already has it. The rear wouldnt be too hard for a person with the tools, and skills or any performance/chassis shop. The IRS Jag and Corvette rears has been a common swapped setup in everything from old street rods, to 50's-70's trucks, 70's camaros, etc. Its been done many times
Verdigris On Copper Pipes

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