Matt Garrettt
New Member
Hello All, was fixing a pinhole leak in my 2" copper drain pipe (from kitchen) and noticed discoloration along the underside of the pipe; most of pipe is dark/blackish, but there is a shinny (like new copper) 'vein' running along the length. Pictures are attached.
Don't know if this is failure/deterioration of pipe from use over time; water that hasn't fully drained sitting in there, drying, eating away. Is this a common thing? I live in South Florida, so I don't know how caustic the water is.
My other thought is that water has been leaking from pinhole, running down the length of pipe (the discoloration is down the grade of the drain, does not occur in the other direction), and causing the discoloration on the outside/exterior of the pipe.
New home owner, so I don't know the age of the pipe, but with the house built in 1950's, could be as old as that. However, the pipe itself looks to be in fine shape; no green oxidation anywhere, no other serious discoloration.
Is it common to have this shinny, 'like-new' discoloration on the bottom of copper pipes? The location of the pipe in question is running inside concrete block in the interior of the house. The only access I have is through the small hole where the drain bends out of the wall to the sink basin connection (no crawlspace). Would certainly like to avoid tearing out a whole wall/cabinets to replace only to find it was cosmetic staining on the outside.
Any advice is very much appreciated! Thank you all!
-Concerned 1st time plumber
Don't know if this is failure/deterioration of pipe from use over time; water that hasn't fully drained sitting in there, drying, eating away. Is this a common thing? I live in South Florida, so I don't know how caustic the water is.
My other thought is that water has been leaking from pinhole, running down the length of pipe (the discoloration is down the grade of the drain, does not occur in the other direction), and causing the discoloration on the outside/exterior of the pipe.
New home owner, so I don't know the age of the pipe, but with the house built in 1950's, could be as old as that. However, the pipe itself looks to be in fine shape; no green oxidation anywhere, no other serious discoloration.
Is it common to have this shinny, 'like-new' discoloration on the bottom of copper pipes? The location of the pipe in question is running inside concrete block in the interior of the house. The only access I have is through the small hole where the drain bends out of the wall to the sink basin connection (no crawlspace). Would certainly like to avoid tearing out a whole wall/cabinets to replace only to find it was cosmetic staining on the outside.
Any advice is very much appreciated! Thank you all!
-Concerned 1st time plumber