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Implementing these measures will adhere to building codes and provide you with peace of mind knowing that your water supply remains secure.

A standard repair involves turning off the inlet and outlet ball valves and removing the bonnet assembly. Organizing the components during disassembly is advisable to facilitate the reverse installation process.

By following these guidelines, you can maintain a robust and reliable pressure vacuum breaker, ensuring the safety and integrity of your home's freshwater supply for years to come.

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If you notice leaking from under the bell or bonnet assembly of the valve, it is a clear indication that something is not functioning correctly.

By understanding how PVBs work, performing regular maintenance, and addressing necessary repairs, you can ensure your irrigation system's continued functionality and reliability.

Although such events are rare, they can lead to the suction of water from sprinkler lines into the main water supply and, subsequently, enter your household fixtures.

O-ring gaskets that seal against the inner walls of the breaker may become brittle and crack over time, while the plastic poppet and bonnet can also experience wear.

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Periodically, it is essential to check the breaker for leaks. Leaks may occur if the sealing tape or plumber's putty connecting the sides of the breaker is worn, incorrectly installed, or missing.

However, when the air pressure surpasses the water pressure, the vented chamber opens, breaking the suction effect of the low pressure and preventing the backflow of water.

A pressure vacuum breaker is an indispensable component that safeguards your home's freshwater supply by preventing backflow or back siphoning of water from the irrigation system.

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This article will provide a detailed understanding of PVBs, their significance, and why you need one for your irrigation system.

By the end of this guide, you will have a thorough knowledge of pressure vacuum breakers, enabling you to make informed decisions for protecting your home's freshwater supply.

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Typically, it should be placed above the highest point in the system, such as the highest sprinkler head or the highest slope in your yard.

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Since most homes have a single water system for drinking water and other household uses, including irrigation, contamination through cross-connections always exists.

Series LF25AUB-Z3 Lead Free* Water Pressure Reducing Valves are used in commercial and residential applications to reduce incoming water pressure to a predetermined level, thereby protecting downstream plumbing system components and reducing water consumption. For versatility, a variety of end connections are available: threaded, solder, PEX, quick-connect, CPVC, Press, or Cold Expansion PEX (ASTM F1960) with union and double union. Standard pressure setting is 50psi with an adjustable range of 25 ‒ 75psi (172 ‒ 517 kPa). For sizes: 1/2 to 2 IN (15 ‒ 50mm). Temperature range is 33 to 180 degrees F (0.5 to 82 degrees C).FeaturesSealed spring cage for accessible outdoor or pit applicationsFor water supply pressures up to 300psiIntegral stainless steel strainer and bypass feature that controls thermal expansion pressureDesigned for easy in-line servicing; has replaceable seat module

After winterization, it is recommended to open the valves on the PVB halfway to allow any residual water to escape as air, preventing pressure buildup that may cause damage.