I just looked at my water meter, and noticed something weird. The water goes into the meter (i.e., city water supply line) using a metal pipe. But then, the output of the meter is a PVC pipe, which goes into the ground. About 2 feet down the hill (my house is built on a downward hill), there is a metal pipe coming straight up out of the ground, which connects to a pressure reducing valve and then goes into the house.
I'm confused as to why a PVC pipe is used for that short distance between the water meter and the pressure reducing valve. My house uses copper pipes. Any thoughts why anyone might have done this? Thanks!