Backflow Inspector University City

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. 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. 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 University City at (314) 450-0342.

Backflow Inspections University City

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?

Backflow valves must be installed alongside irrigation systems to ensure that each water system remains separate. Contaminants can enter an irrigation system from fertilizer or pesticides that are sprayed onto lawns. These systems can sit still for days, and water that isn't moving can collect tons of different bacteria and contaminants.

During a system imbalance, which can happen during a water main break, the use of a fire hydrant, or a problem with the city sewer, the water levels in your system can become unbalanced and dangerous to consume. 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. How else can this happen? Even minor fluctuations in the city water supply (such as another neighborhood using a large amount of water) can cause imbalances that can introduce contaminants into your water supply.

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 University City

A backflow preventer keeps your drinking water and your irrigation water separate. Our Licensed University City Backflow Testers can check your University City 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 University City

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.

It can seem overwhelming to figure out what type of backflow preventer is the best fit for your home. Our Licensed Backflow Inspectors in University City can help you make the correct decision for your home and irrigation system. Our Backflow Inspectors can quickly and efficiently install your backflow preventer to make sure your system is safe and up-to-date.

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 University City and need a backflow testing and installation professional, Lawn Sprinklers of University City can help. Contact Us today to learn more about University City backflow testing and installation services.