We Are In Atlanta and there are a ton of butylene sprinkler systems in apartments dating from the 80s. It's fuse joint pipe and never had the leakage problems that the domestic bute systems had but due to the bad press it was pulled from the market.
We never jumped on the butyl band wagon after...
I have a contractor customer who cut through the side of a 1 1/4 inch polybutylene fire sprinkler pipe with a sawzall. We have used PEX adapters in the past but they only go up to one inch. This is an apartment building under renovation so the clock is running on this. They can't get a new CO...
