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When the Pressure-Reducing Valve Is the Problem
If your street pressure is high, a valve just inside the property brings it down. They drift, and they wear out, and they are yours to maintain.
Free to homeowners in When the Pressure-Reducing Valve Is the Prob — the contractor pays us for the introduction, you never do.
The short answer
Where street pressure is high, a valve just inside the property brings it down, and that valve is the owner’s to maintain. They drift out of adjustment and they wear out, which makes a house-wide drop on newer plumbing more often the valve than the pipe.
What this site is
PressureTrace is a referral service, not a plumbing contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. Every state page sets out who licenses plumbers there and where to check, so you can confirm before work begins. We do not perform plumbing work, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.A pressure-reducing valve is a bell-shaped brass fitting on the main line where it enters the property, usually within a few feet of the shut-off, often with an adjusting screw and lock nut on top. Not every home has one — they are fitted where incoming pressure would otherwise be too high.
Two different failures
Drift. The valve is working but has moved off its setting, so the whole house runs low. This is an adjustment, not a repair.
Failure. The internals wear out. Life expectancy is commonly 10 to 15 years, so a house of any age may be on its second or third. Life expectancy and responsibility as published by the Elizabethton, Tennessee water utility.
Telling them apart
Fit a gauge to an outside tap and read the static pressure. The method is here. If the reading is steady but low, drift is likely. If it swings, or if adjusting the screw changes nothing, the valve is probably done.
Whose job it is
The PRV is on the customer's side and is the property owner's to maintain — utilities are explicit that they do not maintain it. Life expectancy and responsibility as published by the Elizabethton, Tennessee water utility. That also means the cost of replacing one falls to the owner rather than the water company.
A word of caution on adjusting it
Small turns, then re-measure. It is easy to overshoot, and pressure above 80 psi shortens the life of fixtures, flexible hoses and appliance inlet valves. If the valve does not respond, stop and get it looked at rather than forcing it.
Still not sure whether it is the whole house or one fixture?That distinction decides who you need and what it costs, and it takes one conversation. We route you to a contractor who covers your ZIP code, you are never charged, and if the answer turns out to be an aerator we will say so. And it need not be pressure — this number takes any plumbing problem.
Call (866) 838-2750