Can pex fittings be reused?
My use of "PEX" piping and fittings is somewhat limited as compared to a person who works with it everyday, so here's my opinion, and I stand to be corrected: The rings which are crimped onto the outside of the PEX tubing are not reuseable. They can be cut off without damaging the actual fitting(s), then discard the damaged ring. I have used fittings, elbows, reducers, adapters, etc., twice. I've had no need to use them more than twice. Whenever I have had to cut a ring off PEX tubing, I always cut back the damaged part of the tubing to have a good, new working surface. NO chances taken there. From what I learned from plumbers using PEX before buying tools, crimpers are to be sized according to the size of the crimp ring. I was told to stay away from the crimpers which would crimp multiple sizes as they were not consistent. Being as 99% of my work involves 1/2" or 3/4", that is the sizing of crimpers I bought and all has been well. My 2¢ worth, David