Backflow Testing in Norman, Moore, and OKC
Do you have a backflow prevention assembly installed on your property? Make sure you continue to remain compliant with county regulations by scheduling testing before the annual deadline.
Legacy 4 Plumbing, Inc. is a certified backflow tester for Oklahoma City and surrounding areas in Norman and Moore. We also provide assembly installations and repair. Our team has all of your backflow prevention needs covered.
What is Backflow and How Does It Happen?
Backflow is the reverse flow of water in our plumbing lines. When this happens, the potable water supply becomes contaminated with wastewater. Backflow is caused by backpressure or backsiphonage.
Backpressure: When the water pressure in your private water line exceeds the pressure in the municipal line, backpressure occurs. This problem causes wastewater from your side to cross into the city’s main water line, which will affect the drinking water in your surrounding community.
Backsiphonage: This occurs when there is a sudden change in water pressure, causing wastewater to flow in the opposite direction. Common causes of backsiphonage include water main breaks or improper use of fire hydrants.
A professionally installed backflow prevention assembly can help stop problems such as backpressure and backsiphonage, and keep our community’s potable water supply safe.
Do You Need to Install a Backflow Prevention Assembly?
Backflow prevention assemblies are most often installed in commercial properties. However, certain residential properties are also required to have these systems, particularly homes with cross connections between the private plumbing line and the city’s water system.
You will need a backflow prevention assembly if your property includes any of the following features:
- Fire protection systems
- Irrigation systems
- Large commercial boilers
What to Expect During Backflow Testing
The county will send you a reminder for backflow testing before the deadline (usually forty-five days prior). Call our certified backflow testers to have your system tested and avoid interruption in water service.
Our team provides comprehensive inspection and testing. We will check for irregularities, worn out components, and other problems. If there are no existing issues, the testing process should take no more than thirty minutes. If we find any problems with your backflow prevention assembly, we will carry out the proper repair. Once the test is complete, we will send a report to the appropriate offices on your behalf.

















































Let us handle all of your backflow prevention needs.
Call us today at (405) 788-1139 to schedule testing, repair, or installation services in Norman, Moore, and the OKC Metro.
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