I have a question about using galvanized pipe in wet-pipe systems. I have a building in which part of the building is wet-pipe, and part of it has a dry-pipe system using galvanized pipe in an unheated area.
Our renovation of the building is turning this space into a heated area.
My initial thought was just leave the existing pipe in place, convert the riser to wet-pipe, and make any minor modifications to the system coverage as needed.
As I've read more I'm not so sure. FM specifically says not to use pipe that has been internally galvanized on a wet-pipe system, and while it doesn't seem to be outright prohibited by other sources, I seem some strong recommendations against it.
If there is any experience out there on the subject I'd appreciate it.
At the moment I'm strongly considering replacing all system components and materials back to the base of the riser.
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