QUOTE(MrBadExxample @ Jul 11 2008, 07:31 PM)

Proper installation of the fittings is critical. There's a specialized tool that crimps the bands at each fitting. If it's worn out or not calibrated correctly the bands can and do fail. Guess what happens next.
Not all fitting types use a band and properly installed it is just as, if not more, reliable than copper and there way less fittings buried in the walls so less chance for concealed leaks. I'd have no problem using PEX.
QUOTE(CxBXR @ Jul 12 2008, 09:48 AM)

commonly used for radiant heat flooring applications. The plumber probably has extra on hand & taking the short way out.
Go with copper & forget about it
So it's OK to run water around in your floor or wall or ceiling for heat but not OK to get water to you shower?
QUOTE(Fleg @ Jul 11 2008, 08:55 PM)

Builder here used the stuff in all their houses when they were building in the 80's. I know they got sued over it a number of times and I think closed their doors over it.
Unless they were very early adopters, it seems unlikely that they were using PEX. It's been used in Europe for 4-ish decades, but much less time here.