Upon arrival customer stated there was a main water line leak. I dug and found it was a galvanized pipe. I informed the customer we can not repair the line and that we would have to replace it. Gave customer estimate. Customer approved estimate. I dug two holes one at the meter and on at the home. Then I trenched the two holes together and ran the new pipe. I also made a new stub out and sealed the new hole and connected the new line to the existing one in the home. I also installed a ball valve and meter box. I tested the system and system is working properly with no leaks or issues. Then I backfilled the holes and checked the pressure to the home. I found that the Prv is fluctuating when one or more fixture is turned on in the home. I informed the customer that the PRV is not supposed to do that and left him with two estimates to either replace the PRV and the whole house, shut off or just the PRV.