PEX and Connector Fittings
I would like your advice on what is the most reliable way to use PEX for residential plumbing. Two folks I know (one is my dad) had leaks from a crack in the plastic joint that is used to fit PEX tubes together.
My plumber for repairs says he only uses brass "compression fittings" or "ferrules" to connect the PEX because it is stronger and has a larger diameter hole. He also only uses plastic brackets, not sharp edged metal ones to attach the PEX to the wall because the PEX vibrates some and he doesn't want friction to cause a problem behind closed walls. That all sounds great.
The problem is we are now headed into a to the studs remodel and none of the contractors seem to think there is anything wrong with going with the cheaper plastic connectors; and they don't want to get in trouble with their insurance by telling a plumber sub how to do his job. Plus, each we interviewed wants to use their own plumbers, not my repair guy (who probably does not want to do a whole house anyway because he'd get so backed up with other work).
It does look like I can get the contractors to use real metal pipes to connect to the fixtures. I gather the PEX would attach to the metal, and the metal would come out of the wall and attach to the faucets, etc.
We have radiators that use something that looks like PEX, and all of these joints seem to be metal. OUr contractors say when they do in-ceiling hydronic, the joints will be plastic. I'm worried about that too, but I suppose hydronic heating plumbing is not the same as water plumbing. So this concern may be another question thread.
Sorry my terminology is probably all garbled. I'm trying to understand stuff I know nothing about because I don't want to end up with a $400K remodel job in 5 years to deal with mold and leaks caused by joint plumbing failures like our friend faced. (My dad's fix was not that costly fortunately!)