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Signs Your Pressure Reducing Valve Is Failing: How to Know and What to Do

Experiencing fluctuating water pressure? While modern plumbing is a convenience, it can also bring unexpected issues. Take your morning routine, for example. You wake up to your alarm, rush to get ready, and turn on the shower, expecting a steady stream of water. Instead, you’re hit with either a weak trickle or a sudden surge that catches you off guard. Sound familiar? These fluctuations often point to a certain issue— a failing pressure reducing valve (PRV). In this blog, we’ll be discussing how a PRV works and what warning signs indicate it’s time for attention.
What is a Pressure Reducing Valve?
Before we begin to identify the warning signs of a failing PRV, let’s clarify what it does. A pressure reducing valve (PRV) lowers the high water pressure coming from the city supply, making it safer and more manageable for your home. Ideal water pressure typically ranges between 50-75 PSI, while local municipality standards recommend not exceeding 80 PSI. Installed on the main water line, a PRV helps protect your plumbing by keeping water pressure within safe limits.It’s usually located inside a valve box outside or behind an access panel in the garage. However, when this vital device starts to malfunction, your home’s plumbing may give off a few warning signs that it’s time for action.
Signs of a Compromised Pressure Reducing Valve
Now that you know the purpose of a PRV, how do you tell if it’s failing? Catching these signs early can save you from bigger headaches later.
Inconsistent Water Pressure: Sudden drops or surges in pressure while using your fixtures indicate that the PRV may no longer be regulating flow properly, causing unpredictable fluctuations in your home.
Noisy Pipes (Water Hammer): Loud banging or knocking noises in your pipes—known as water hammer—are often a result of high pressure surges. This happens when the PRV fails to control the water flow effectively, sending shock waves through the plumbing.
Leaks or Visible Damage: Look for signs of corrosion, cracking, or a leak around the PRV. These physical indicators often point to a malfunction and can lead to more serious plumbing issues if not addressed immediately.
Strain on Appliances: Excessive water pressure can stress appliances like dishwashers, washing machines, and water heaters, leading to frequent repairs or premature failure. If your appliances are breaking down more often, a failing PRV may be to blame.
Spotting these issues early is crucial for preventing major problems with your plumbing system. But once you’ve identified a potential issue, the next step is deciding whether to repair or replace the valve.
Is a Pressure Reducing Valve Necessary?
To repair or not to repair—that’s the question at hand. As previously discussed, a PRV ensures that your home’s water pressure stays within safe limits. However, when the valve starts to fail, it’s essential to assess whether repair or replacement is the best option. Small leaks or minor pressure fluctuations might be fixable with a small repair, but significant damage or an old valve might require a full replacement. Evaluating the severity of the issue and the age of the valve will help you make the most cost-effective and reliable decision.
Conclusion
Recognizing the warning signs of a failing pressure reducing valve can prevent costly repairs in the future. Even though plumbing issues aren’t always obvious, knowing what to look for ensures you catch minor problems before they escalate. Addressing these issues promptly not only save money, but also help to avoid significant disruptions to your household routine. If you suspect your PRV isn’t working as it should, don’t hesitate to contact Specialty Plumbing. Our team is here to quickly resolve the issue and get your plumbing back on track.
Your Go-To Plumbing Services in north DFW

Specialty Plumbing is a family-owned and operated company proudly serving North DFW, including Celina, Frisco, McKinney, Plano, Allen,  and Prosper, and surrounding areas. Our team is committed to providing exceptional customer service because we understand that plumbing issues can arise unexpectedly. Our mission is to resolve them swiftly and efficiently! Reach out to us today, for any plumbing service you need, and witness our commitment to excellence firsthand!

At Specialty Plumbing we love to empower our clients with general knowledge of their plumbing systems! If you have any questions on a topic, please feel free to reach out. We’re here to continue creating content that educates you further on your plumbing system.

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