A Reduced Pressure Zone (RPZ) valve can solve this problem. An RPZ is a critical component in irrigation and plumbing systems because it is specifically designed to protect your water supply from backflow contamination.

You’ve painstakingly perfected your lush green lawn, maybe even a garden, investing time and effort into the perfect sprinkler system, and then you take a break. While you’re resting you discover that your prized landscape—and potentially even the cold glass of water that you reach for—may be compromised by contaminated water seeping in due to backflow.

RPZ assemblies are specifically designed to address these issues by creating a reduced pressure zone between two independent check valves. The Reduced Pressure Zone valve, in turn, is your last line of defense against any backflow, safely venting water out so it does not re-enter your drinking water supply.

The Reduced Pressure Zone valve should be installed in an easily accessible location, so that it can be regularly tested and maintained. It should be above ground and protected from freezing temperatures, which can damage the components.

If your installation isn’t properly installed and maintained, then your Reduced Pressure Valve won’t be able to fully protect your drinkable water from potential contamination.

But if you make installation and maintenance a priority for your home, you can rest easy knowing that your RPZ will get the job done.

RPZ assemblies should be installed by licensed professionals familiar with local plumbing codes and standards. If you improperly install it, the result can lead to failures and potential contamination.

If either check valve fails, or if backpressure or backsiphonage occurs, the pressure difference causes the relief valve to open, discharging the contaminated water and preventing it from reaching the potable supply.

Let’s learn more about what makes a Reduced Pressure Zone valve so vital in protecting the water that you use on your landscape and in your home.

Having a Reduced Pressure Zone (RPZ) valve is indispensable for protecting your sprinklers, your lawn, and your drinkable water. Their design effectively prevents backflow, ensuring that contaminants are separated from the water you need for daily drinking.

Contaminated water in irrigation systems poses a serious threat to your health. Let’s go deeper into how Reduced Pressure Zone valves can reduce significant risks related to water safety.

Any components of the valve that show signs of wear or damage should be repaired or replaced promptly by a professional to keep your system in working order.

Ensure the assembly is installed in the correct manner as specified by the manufacturer, with the relief valve positioned to discharge correctly.

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Understanding the key parts of a Reduced Pressure Zone valve can make all the difference when it comes to proper maintenance and troubleshooting. With some basic knowledge, you can make sure the valve is working correctly, and in doing so, prevent potential water contamination.

Your Reduced Pressure Zone valve must be tested annually or as required by local regulations. Certified testers should perform these tests to ensure the assembly is functioning correctly.

While a professional should be the person to install and repair the RPZ valve, you can stay ahead of potential issues by regularly looking for abnormalities such as leaks or signs of wear. Check the shutoff valves, test cocks, and the relief valve for any signs of damage or corrosion.

By understanding their components, functionality, and maintenance needs, homeowners and professionals can ensure the longevity and reliability of these critical devices.

Debris can accumulate within the assembly, especially in areas with hard water. Regularly clean the check valves and relief valve to protect your system from any malfunctions.

The Reduced Pressure Zone valve works by maintaining a zone of reduced pressure between the two check valves. Under normal conditions, water flows from the supply side, through the first check valve, the relief valve, and the second check valve.

A Reduced Pressure Zone valve is a type of backflow prevention device that ensures that non-potable (not-drinkable) water does not contaminate potable (drinkable) water systems.

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