Mike Lamb Posted September 20, 2014 Report Share Posted September 20, 2014 All of the copper water pipe is black and some of the wiring in the newer elec panels is also discoloring. This basement is empty and clean but has sewer problems and smelled heavily of sewage. Will methane discolor copper? I have read there is also hydrogen sulfide in sewage. This should probably be in the plumbing section. Click to Enlarge 54.88 KB Quote Link to comment Share on other sites More sharing options...
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