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.