Sethamin
New Member
My plumber ran some supply lines in a very narrow brick channel next to the cast iron waste stack. Unfortunately, the copper and cast iron are touching at points, and the channel is so narrow that it's not possible to get any foam insulation in there. What else can I use to protect the copper from corrosion? I obviously want something that will last a long time. I was thinking of putting some vinyl PVC wrap tape between the CI and the Copper. Will that work? Other suggestions?