Paulcmaine
New Member
I am doing a repipe of my house which is all polybutyl. The diverter valves on the showers are threaded to a crimp fitting to the polybutyl, can I just cut the crimps and slide pex onto the fittings and recrimp or do I need to unthread and replace the whole fitting? Is there a way to tell whether these are pex or poly-b fittings? This house was re-plumbed after Hurricane Katrina in 2005 which is well beyond when people were using poly-b (as I understand it). It was done by the homeowner. He seemed to genuinely think he had used PEX, my suspicion is that he got a 'great deal' on all this pipe but I wonder if he was crimping the poly-b onto pex fittings?
