They can be located near or at the meter,That could be. Is the water pressure regulator / reducer located near the main water shutoff valve? Someone mentioned that they are located near where the main water line runs into the house. If that is the case he didn’t come into the backyard where the main would come into the house.
Not sure?? Hope to talk to him tomorrow?
I’ve had the best luck with reducing water pressure to around 55-60 psi over all other water hammer arresting methods, when it seems everything causes the hammer.I did hear it was hit and miss. Is the only other alternative to install a water pressure regulator on the main line in?