Old plumbing that won't unscrew
I am trying to get the plug out of an old cast iron drain and it is
stuck solid I have tried WD 40 and it didn't work. Someone else
suggested CLR but I wanted to check here first. The last think I need
is a broken old cast iron drain leaking sewer gas into the house. Any
ideas?
Also there is galvanized pipe I need to connect to and they won't come
part either.
Please don't tell me this is a case where I have to cut into the old
line and make some kind of a joint. It is very hard to reach.
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