You can file this under "dumb questions", but would appreciate if someone(Terry?) with long term experience with the product would comment. Have you ever encountered a situation where AquaPEX which has been in service for some time fails to constrict properly after being expanded? Yes, I realize PEX-A behaves the way it does due to it's molecular make-up, etc. But lets say you have hard water or a high chlorine content, etc. Can this affect the pipe?

I recently finished a re-plumb using AquaPEX. If I need to replace a shutoff down the road, or tie into the system is this something I might encounter?