When a pressure vacuum breaker starts leaking, it’s often a sign that internal components are no longer sealing properly. In Fredericksburg and across the Texas Hill Country, one of the most common causes is worn or deteriorated seals, which can happen naturally over time as the device is exposed to pressure changes and outdoor conditions. Freezing temperatures can also crack internal parts if the PVB wasn’t properly winterized, leading to persistent leaks once the system is turned back on.
Another frequent issue is debris inside the valve. Dirt, sand, or mineral buildup can prevent the internal components from closing fully, allowing water to escape. Because a leaking PVB can compromise your sprinkler system and your home’s water safety, repairs should be handled by a professional. At 72 Degrees Texas, trained plumbers inspect the device, identify the root cause of the leak, and make the necessary repairs to ensure your pressure vacuum breaker is working correctly and your sprinkler system operates smoothly and safely.
