Backflow Assembly Testing

The 2020 Minnesota Plumbing Code requires all testable backflow prevention devices installed on or after January 23, 2016, to be tested upon installation and annually thereafter by a certified backflow assembly tester at the expense of the homeowner. Testing ensures backflow devices are working correctly to prevent contamination from entering a building's water distribution system.

If you have a lawn irrigation system that was installed before January 23, 2016, it is exempt from the testing and maintenance process.

Requirements

• The tester must complete a Backflow Assembly Test form for each device.

• Backflow Assembly Test form must be uploaded to the application.

• A Certified tester must include their license number in the application.

Fees

$25 per device. You must provide an application for each device tested. Multiple permits can be paid for all at once through your Online permitting account.