R Robert McKenna New Member Messages 3 Reaction score 0 Points 0 Apr 9, 2005 #1 Understand may be potential corrossion problem to screw Copper coupling directly into threaded Cast Iron shower drain. Can I thread galvanized pipe into C.I. shower drain w/o problem?
Understand may be potential corrossion problem to screw Copper coupling directly into threaded Cast Iron shower drain. Can I thread galvanized pipe into C.I. shower drain w/o problem?
Terry The Plumbing Wizard Staff member Messages 29,942 Reaction score 3,483 Points 113 Location Bothell, Washington Website terrylove.com Apr 9, 2005 #2 Galvanized to cast iron is fine.