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Backflow Preventers 101: The Basics About These Plumbing Devices

Most homeowners know the importance of preventive maintenance for their cars or home appliances. But what about your plumbing system? Did you know that there are some things you can do to help prolong the life of your plumbing and dodge costly repairs?

This blog post will look at one preventative measure: backflow preventers. We’ll discuss what they are, their various types, why they’re important, and how to choose the right one for your home. Read on to learn more!

What are Backflow Preventers?

Backflow preventers are devices installed in your plumbing system to help protect your home from contaminated water. Suppose there is a sudden change in pressure in the municipal water system. In that case, they keep water from flowing back into your home’s clean water supply.

Why are Backflow Preventers Important?

Backflow preventers are important because they can help you avoid serious health problems that could occur if your home’s water supply becomes contaminated. In addition, backflow preventers can also help save you money by preventing costly repairs to your plumbing system.

What are the Various Types of Backflow Prevention Devices?

There are four main types of backflow prevention devices:

  • Atmospheric Vacuum Breakers (AVBs)
  • Pressure Vacuum Breakers (PCBs)
  • Double Check Valve Assemblies (DCVAs)
  • Reduced Pressure Zone Devices (RPZDs)

Atmospheric Vacuum Breakers (AVBs)

These are the most common type of backflow prevention devices. They’re typically used on irrigation systems, hoses, and other outdoor faucets.

Pressure Vacuum Breakers (PVBs) 

They are similar to AVBs but can handle higher water pressure. They’re often used on fire sprinkler systems.

Double Check Valve Assemblies (DCVAs) 

These are more complex than AVBs and PCBs. They have two check valves that prevent backflow, an air inlet, and a relief valve. DCVAs are typically used on commercial properties.

Reduced Pressure Zone Devices (RPZDs)

These are the most complex and expensive types of backflow preventers. They have two check valves, an air inlet valve, a relief valve, and a pressure-reducing valve. RPZDs are typically used in properties where there is very high water pressure.

Now that you know the different types of backflow preventers, how do you know which one is right for your home? Continue reading to discover the answer. 

How to Choose the Right Backflow Preventer for Your Home?

Here are three factors to consider when choosing a backflow preventer for your home:

What’s the size of your home?

If you have a large house with several bathrooms, you’ll need a bigger backflow preventer than someone with a small apartment with just one bathroom.

What type of plumbing system do you have?

If you have a standard home plumbing system, you’ll need a different backflow preventer than someone with a well water system.

How is the water pressure in your home?

You’ll need to determine the water pressure on your property. You can gain this information from your local water utility company. If your home has high water pressure, you’ll need a backflow preventer that can withstand that pressure.

So, there you have it. Everything you wished to know about backflow preventers but were afraid to ask. Now that Accurate Backflow Testing & Plumbing has armed you with this knowledge, what are you waiting for?

Schedule a backflow test and ensure the safety of your water supply!

If you need any help with backflow preventer installation and repairs near Parish, FL, don’t hesitate to give us a call.