pulsing

No changes made to the system lately but within the last week it seems we have 2 problems (or symptoms). 1) Two times we have lost pressure completely while someone was showering. The first time it was when the clothes washer was also running the second time it was when 2 showers...

I live in a suburb of Los Angeles connected to municipal water. In the last few days I noticed that anytime water is running in our home it pulses. There is a water pressure regulator at the front of the house & you can really hear it out there. I think it’s the regulator but wanted the opinion...