Did you know there are over 259,000 publicly and privately owned water supply systems in the US today?

Without these systems, more than 85% of the U.S population would have no access to clean and safe water. Astonishing, right? But what are the mechanisms put in place to ensure the water supplied through these systems is safe?

Well, the companies behind these water supply systems have invested heavily in backflow preventers, which prevent contamination.

What are backflow prevention valves? How do they work? How do you know if you need them installed at your house?

Read on to find the answers to these questions.

What’s a Backflow System?

To help you understand what a backflow system is, let’s first explain a backflow.

Backflow is a term used in the plumbing world to describe an undesirable flow of water in the reverse direction. The backflow of water carries contaminants back to the primary water supply system, making the water in it unsafe to drink.

Backflow occurs due to pressure changes in the pipe.

So, what’s a backflow prevention valve? This is a device that ensures non-potable water doesn’t get back into the main water supply system. Simply put, it’s a device that ensures water flows in one direction.

How Do Backflow Preventers Work?

There are two main types of backflow systems: air gap (AG) and reduced pressure valve assembly (RPZ).

Air gap backflow systems, as the name suggests, have an air gap between the water supply system and the receiving vessel. The air gap prevents non-potable water from flowing back to the clean water supply system.

RPZ backflow systems, on the other hand, have valves that only open when water is flowing forward.

Regardless of the type of backflow device you choose, make sure you hire a qualified and licensed plumber for installation and other plumbing services. Backflow devices have to be installed in strategic places for them to work correctly.

Why Do You Need a Backflow System?

Backflow valves not only protect you against contaminates but also your neighbors who rely on the same water supply system.

If you’re a landlord, you are required by the landlord-tenant relationship laws to ensure that the water in your building is clean and safe. Installing a backflow prevention valves will help you to protect your tenants and comply with the law.

When Do You Need a Backflow System?

Prevention is better than cure. If you have a well or an irrigation system, you need to install a backflow device on your water system.

Both irrigation water and clean water systems are at high risk of coming into contact with pollutants due to backflows.

Whether you have a well or depend on a public irrigation system, you still need to install backflow devices in strategic places where incoming water can mix with wastewater.

You also need to invest in a backflow valve if you notice your water has an unusual flow, taste, color or smell.

Wrapping Up

As a homeowner, you should ensure your family has safe and clean drinking water. You can do this by investing in quality backflow preventers. They’re affordable and will prevent costly health issues.

Ensure you hire a licensed and experienced plumber to install the devices.

If you have any questions or are in need of residential or commercial plumbing services, contact us now.