I am going to have my water service line from the meter to the house
re-piped. It's about 120 feet total (don't ask me why the city
installed the meter around the back.) I was told I can run about 60
feet underground to the house, then the other 60 feet in an accessible
crawl space to the front of the house. Rather than putting copper in
the ground, I am thinking of having the plumbing company use PE or PEX
for that portion, connecting to a 1" copper line in the crawl space for
the next 60 feet. I've got two questions:
1. Any problems getting a PE or PEX pipe connected to copper (with a
shut-off valve before it enters the crawl space)?
2. PE or PEX for the underground portion from the meter? As I
understand it, the cross-linking (X in PEX) makes it thermally stable
so it retains strength with hot water. But all I have coming from the
meter is cold water, so should PE work just as well?
Location - Northern CA. We get some shaking on a fairly regular basis,
and the winter temperature once in a while can dip down to freezing or
just a bit below.