Are backflow preventers required in Michigan?

Why am I required to test my backflow device? Due to recent changes in the State of MI Safe Drinking Water Rules Part 399, the Michigan Department of Environmental Quality requires that all residential backflow devices must be tested periodically to ensure they are working properly.

Where is a backflow prevention device located?

Where is the Backflow Preventer Located? You should have your backflow prevention assembly installed inside an above-ground enclosure. It’s the safest and most cost-effective place to put it.

How do I know if I have a backflow prevention device?

You can check to see if you have a backflow prevention assembly by looking at where water enters your property (usually in a basement by the water heater, a crawl space, or in a mechanical room).

How often do backflow devices need to be tested?

How often does my backflow preventer need to be tested? Reduced Pressure Zone (RPZ) assembly needs to be tested annually and rebuilt every 5 years. Double Check Valve (DCV) assembly needs to be tested every 3 years.

How much does a backflow test cost?

Certified professionals will usually charge more than uncertified plumbers, but they usually won’t be able to make repairs or file certifications with the city. With that said, backflow testing costs an average of $150 to $250….How Much Does Backflow Testing Cost?

Average Cost Range $150 to $250
High Cost Range $250 to $500
Commercial Costs $350 or more

What is the best way to prevent backflow?

The best way to prevent backflow is to avoid creating a cross-connection. Do not attach a hose to a faucet unless a backflow prevention device, such as a vacuum breaker, is attached. A vacuum breaker is a mechanical device that prevents backsiphonage.

How long does a backflow valve last?

Backflow preventers are made to last and assemblies that have been installed for fifty plus years continue to provide the needed protection for our water systems.