Need Help! This will be a long one. Please bear with me. So, I have an ongoing issue with my pipes vibrating, specifically where my PRV is. This shakes rapidly and loudly at random and odd times throughout the day/night when there IS NOT any water running in my home. The water pipe/PRV does not vibrate/shake when I run water or doesn't even shake when I turn the water off. It's really at random times when it starts vibrating loudly and hard. Sometimes in the middle of the night when my wife and I are sleeping, or random times throughout the day, it will just start. Sometimes it will last a few seconds, to a about a min. Or it will be a start and stop thing for a few second or few minutes. I've had 3 different plumbers come out to assess my pipe, my county's water technician come out about 5 different times, and even with my own research, still can't fix the issue. In one visit by one of the plumbers, they changed the PRV and drained my water heater (not sure why they drained the water heater). Same vibrating issue. Plumber suggested calling the City to see if their water tech could check on the meter inside the manhole in front of my yard near the sidewalk (don't know technical name, but the piece where it connects my outside water pipe with my neighbor, inside the manhole where it has one of my meters). The plumber thought it could be one of my neighbors that could be causing my PRV/pipe to shake, since they might also have a bad PRV. We tested it, but doesn't really have an effect on my PRV/Pipe shaking. I thought it did after a couple of tests, they ended up getting their PRV replaced, but still same issue on my end. So no effect really there. The County's water tech kept saying it's one of my neighbors that could have a leak or bad PRV or something to that effect. But after testing on a few other houses on the same row as me, by running water in their house, my pipes didn't shake. The tech even changed my meter inside the manhole bc he thought that could've gone bad. No results, same issue with the pipes. Another plumber came out, thought it could be a leak somewhere in my house. He checked the toilets, all water faucets and no indication of any leaks. My water bill seems pretty consistent as well. So he changed a washer valve in my upstairs shower stall, thinking the washer had gone bad and could possibly fix my vibrating pipe. Still, same issue. He even checked my front yard to see if it was damp or soggy, indicating a possible leak in my pipes, but he felt that wasn't the issue. This time, a "senior" more experienced plumber came out and suggested that 1) could be one of my neighbors. 2) I have a bad PRV, even though it was replaced. 3) Check with my neighbors along my same row, since the entire row houses would essentially use the same water pipe connecting to each of our houses, to see if they are having similar issues. I asked them all, and none of them are having the issue that I am. The county tech came out more times, changed older meters inside the manholes on two other town homes on my same row (again, don't know if I'm saying it right on what's inside the manhole, but I think its some sort of meter that can be replaced). Still, same issue on my end. I've read multiple online forums about water hammer, but this is a different situation. I did drain my pipes by cutting my water supply off, and open all faucets and toilets and let the water drain. That didn't help anything. Any advice or help would be greatly appreciated. I'm stuck and not sure what else to do. Thank you!

Hello. I have called my water company to turn off the water. They came to my home and turned it off at the curb/street. There is no water running in my home. The only place I can hear water running is under my sink. If the pipes have frozen and busted and water is shooting out why is water running from under my sink if the main valve was shut off?