Tumbleweed
Well-Known Member
Good day All. I was getting ready to cut this 1" water line to insert a fitting. (This is up in the rafters space of the garage). While knocking off the layers of dirt and spider webs I observed these spots all along the surface of the pipe, for a length of about 24-36 inches. The rest of the pipe looks like a normal 40+ year old copper pipe. Is this the remnants of solder flux residue not being cleaned up, or something more alarming / sinister I need to address ? I appreciate all your responses and feedback, thank you in advance.