Backflow Inspector Maplewood

Regular Backflow Inspections ensure that your water is safe to use both inside and outside of your home.

 Inspection Company St. Louis

Backflow preventers keep your drinking water and the water inside your house safe from the water you use outside. Keeping these two waters from mixing is important because the water used inside your home is held to a different standard of quality than the water you may use for your lawn. It's important to inspect backflow preventers regularly to make sure that these waters don't mix. To have your backflow inspected, contact our backflow inspectors in Maplewood at (314) 450-0342.

Backflow Inspections Maplewood

Just like any other system connected to your water line, backflow preventers will periodically be needed to be inspected to ensure they are safe.

Why is a Backflow Preventer Required on a Lawn Sprinkler System?

When an irrigation system is installed, it must also be paired with a backflow valve. Many different chemicals are used to keep a lawn in excellent shape, and these chemicals can sometimes find there way inside your irrigation system. Minerals, bacteria, and different kinds of contaminants can collect in a stagnant system.

There is a water leak in the house, house water service break, city water main break, hydrant flushing, or hydrant use due to a fire, the water pressure in the house or city water mains can drop lower than the water pressure in the system. During this imbalance, the water in your irrigation system can back-up into your drinking water, which is dangerous. The next time you or a neighbor turns on a faucet for a drink of water, the water received could contain contaminants. Even small fluctuations in city water mains that occur due to uneven water use from one neighborhood to the next can cause drops in pressure large enough to cause a back-flow and therefore, contamination to occur.

Having contaminants and bacteria in your drinking water supply can cause serious illnesses and in some cases can even lead to life-threating diseases.

How Backflow Testing is Done - Backflow Inspector Maplewood

A backflow preventer keeps your drinking water and your irrigation water separate. Our Licensed Maplewood Backflow Testers can perform a backflow test to see if there are problems with your Maplewood irrigation systems backflow device. This test includes shutting off water supply to allow for investigation of the plumbing system and observing the valve to see if the water is running backwards (which is good), or if the relief valve opens, which is an indication that it needs to be replaced. After testing to see if the water is running backwards, the pressure of the water will be checked. If the water pressure rises as the water flows backwards and seems to be struggling, this could mean that the valve needs to be replaced.

Types of Backflow Preventers - Backflow Installer Maplewood

There are various types of backflow preventers available for your irrigation system, and the type that is used is determined by what kind of backflow situation you need to prevent in your area.

Three of the most common backflow valves are:

  • Double Check Valves
  • Reduced Pressure Zone Devices
  • Atmospheric Vacuum Breakers

Double Check Valves are typically found in lawn sprinklers and fire sprinklers. There is a ball valve on each end of this device that will prevent backflow. Reduced Pressure Zone Devices are commonly used in areas that a city might deem as having “hazardous” backflow. Every city has a different idea of what is hazardous, so it can vary from city to city. This device includes four valves such as an inlet shut-off valve, two spring-loaded check valves, and an outlet shut-off valve. Lastly, Atmospheric Vacuum Breakers have a valve on the inside of the device that prevents backflow. These systems are based on pressure and are placed 6 inches from where the downstream is for your home.

Selecting the right backflow preventer for your Maplewood home can be a difficult choice. Our Licensed Backflow Inspectors in Maplewood have the experience and knowledge needed to assess your home and quickly choose which valve will be best for your home’s needs. Installation will be prompt, and any worries about backflow will be banished.

Our team is licensed and insured, this means that when we test or provide maintenance for your system, you can rest assured that you are receiving safe and qualified expertise. We understand that irrigation problems can be difficult to deal with, so we aim to make the lives of Maplewood residents easier by providing top-notch service.


If you’re in Maplewood and need a backflow testing and installation professional, Lawn Sprinklers of Maplewood can help. Contact Us today to learn more about Maplewood backflow testing and installation services.