Backflow Inspector Maryland Heights

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

 Inspection Company St. Louis

To ensure that the drinking water inside your house doesn't mix with the water your sprinkler system uses to keep your lawn green, you install a backflow preventer. This is important because the water you have inside your house is used for entirely different purposes than the water you use for your lawn. Regularly inspection this important piece of equipment ensures that your water is safe to drink and use inside your home. To have your backflow inspected, contact our backflow inspectors in Maryland Heights at (314) 450-0342.

Backflow Inspections Maryland Heights

Backflow Preventers are important, and having them be regularly inspected should be part of any home maintenance plan.

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. Contaminants can enter an irrigation system from fertilizer or pesticides that are sprayed onto lawns. Minerals, bacteria, and different kinds of contaminants can collect in a stagnant system.

When your system isn't operating at full capacity, because of a leak, fire hydrant use, or hydrant flushing etc, this can cause an imbalance in your system. During this imbalance, the water in your irrigation system can back-up into your drinking water, which is dangerous. The next time someone runs the water, either for drinking or bathing, it could be contaminated. 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.

A little dirt or bacteria backing up into your drinking water may seem innocuous, but there are documented cases of illness and even death from the backflow of contaminated water.

How Backflow Testing is Done - Backflow Inspector Maryland Heights

A backflow preventer keeps your drinking water and your irrigation water separate. Our Licensed Maryland Heights Backflow Testers can check your Maryland Heights backflow tester to make sure that your water supply remains safe. 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 Maryland Heights

The correct backflow preventer for your irrigation system is going to be dependant upon the size of your system, and the types of situations you may face 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 Maryland Heights home can be a difficult choice. Our Licensed Backflow Inspectors in Maryland Heights can guide you in your choice of backflow preventer to make sure the right choice is made for your system. 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. Backflow Preventer problems or issues can cause serious concerns for your water supply, that's why we respond quickly to all problems and always provide professional and reliable service.


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