A backflow preventer is an important piece of a plumbing system. It keeps the water flowing in the right direction and prevents dirty water from entering the drinking supply. It needs constant inspection and maintenance for it to work properly.

This device has springs and valves that are easily worn down due to wear and tear. That’s why backflow inspection is a crucial part of the maintenance of the backflow preventer. Even if there are no repairs and modifications needed, this device still needs to be checked.

Keeping a close eye on this device can be tricky. Luckily for you, we have the information you’re looking for. Now, let’s look at how often backflow prevention should be inspected. Read on to learn more.

Frequency of Inspections

Once a backflow preventer has been installed, it should be inspected once a year. A licensed plumbing contractor is the one authorized to check this device. They’ll carefully look at the device’s performance and see if it works properly, and the water flows in the right direction to prevent backflow.

A backflow preventer should be inspected once a year to avoid malfunction. The sediments and other particles may get into the drinking water supply, or buildup may happen in the backflow assemblies. Even something as small as a pebble can damage them. That’s why an annual inspection is an important part of the maintenance of backflow preventers.

The Two Main Types of Backflow Preventers

Now, there are two main kinds of backflow preventers. The first one is the DCV (Double Check Valve), which is used for low-hazard conditions like lawn irrigation and fire sprinklers. The other one is the RPZ (Reduced Pressure Zone), which is used for high-hazard conditions like fire suppression systems and large boilers. The hazard is determined by the purveyor. However, every city has its own different list of what falls into the high or low hazard categories.

While both types do the same job, they have their differences. The DCV is a closed type of system, meaning there is no way to determine if the check valves function properly. The RPZ, on the other hand, is hydraulically operated and designed to protect the public water supply. So, before you choose a backflow preventer, consult a professional to determine the device, which works for you.

Get Help From the Professionals

If you need your backflow preventer to be inspected, or have problems with your water pressure, you should call the professionals. Severson Plumbing in Bend, Oregon can help you with backflow inspection, leak detection, and more. Contact us today!