Should I use type L or type M, from what I read the M should be sufficient unless it's outside or buried? Can I mix the two such as L for my outside riser and M for the crawl space?
Any reason of using the pvc for the riser? If I install the valve in the crawl space I have about a 20 ft belly crawl to shut off the water to the house. There is a valve in the meter box but I was going to install a valve before it goes thru the stucco siding into the crawl space. I was going to do a copper riser with ball valve, there is already pvc from meter to riser(which currently is galvanized).