This post is to let everyone know my problems with PEX plumbing. I have a new construction home built by Standard Pacific and they used PEX. I have had PEX plumbing spring leaks twice in the last 6 years. The PEX tubes split open and sprayed water out thru the dry wall, into my garage, and out the drywall to the outside wall. It has been the same hot water line from the hot water heater both times. I have had copper fittings come off and spring leaks too on other homes so either one is subject to leaking. Standard Pacific was great about repairing the leak and restoring the home, but I would have had copper installed if I knew this was going to happen.