Backflow Inspector St. Peters

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. 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 St. Peters at (314) 450-0342.

Backflow Inspections St. Peters

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 are required when a house or building is equipped with an irrigation system. Many different chemicals are used to keep a lawn in excellent shape, and these chemicals can sometimes find there way inside your irrigation system. Water sits stagnant or trapped in these systems, which leads to a build-up of bacteria and increased mineral content.

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. When this happens, water from your outside system can back-up into your drinking water. 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.

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 St. Peters

A backflow preventer keeps your drinking water and your irrigation water separate. Our Licensed St. Peters Backflow Testers can perform a backflow test to see if there are problems with your St. Peters 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 St. Peters

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.

It can seem overwhelming to figure out what type of backflow preventer is the best fit for your home. Our Licensed Backflow Inspectors in St. Peters have the experience and knowledge needed to assess your home and quickly choose which valve will be best for your home’s needs. 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. We understand that irrigation problems can be difficult to deal with, so we aim to make the lives of St. Peters residents easier by providing top-notch service.


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