Backflow Inspector Des Peres

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. Regular inspections of a backflow preventer ensure that the equipment is working as intended and that your water is safe to drink. To have your backflow inspected, contact our backflow inspectors in Des Peres at (314) 450-0342.

Backflow Inspections Des Peres

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?

Backflow valves are required when a house or building is equipped with an irrigation system. 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.

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. This can cause water from the system to back-up into the drinking water supply. 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 Des Peres

A backflow preventer keeps your drinking water and your irrigation water separate. Our Licensed Des Peres Backflow Testers can perform a backflow test to see if there are problems with your Des Peres 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 the water direction is checked, the pressure of the system will then be measured. 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 Des Peres

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 Des Peres home can be a difficult choice. Our Licensed Backflow Inspectors in Des Peres can guide you in your choice of backflow preventer to make sure the right choice is made for your system. Our Backflow Inspectors can quickly and efficiently install your backflow preventer to make sure your system is safe and up-to-date.

As Licensed Backflow Inspectors, we have the experience and equipment needed to do safe and efficient backflow testing and installation. We understand that irrigation problems can be difficult to deal with, so we aim to make the lives of Des Peres residents easier by providing top-notch service.


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