Four plumbing companies have come up empty. In fact, none of them have even been able to locate where the main enters our house. Neighborhood pressure is 90-100 psi, according to the utility, so we know there's a PRV somewhere. Our pressure is 50% of what our neighbors have. We've spent more than $1000 just to find the thing (I'd be thrilled to find the entry point for main) with zero results, and I have no idea what else to do.
I have a quote for replacing the main and installing a new PRV, but I don't understand how they can do that if they can't even find the current main entry point into the house. And what if the PRV is inside an interior wall (which I'm being told is a possibility)? We'd be in the same place, minus the big bill for the new main. There is no access panel in the house behind which a PRV might be hiding, and obviously I'm not going to start randomly ripping out drywall.
If anybody has any suggestions, I'd be very grateful. Thank you.
Edit: A couple of these companies are "the best of the best" according to online ratings and feedback, I'm not trying to do this on the cheap.
I have a quote for replacing the main and installing a new PRV, but I don't understand how they can do that if they can't even find the current main entry point into the house. And what if the PRV is inside an interior wall (which I'm being told is a possibility)? We'd be in the same place, minus the big bill for the new main. There is no access panel in the house behind which a PRV might be hiding, and obviously I'm not going to start randomly ripping out drywall.
If anybody has any suggestions, I'd be very grateful. Thank you.
Edit: A couple of these companies are "the best of the best" according to online ratings and feedback, I'm not trying to do this on the cheap.
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