If you receive a letter from us stating you’re due to have your backflow preventer(s) tested, you will need to contact a professional and schedule your test(s).
A qualified tester must be ASSE 5110 certified. Most plumbing companies and businesses in the water industry have certified testers. If the backflow preventer fails the test, you'll have to have it repaired by a licensed plumber.
The repairs must be completed and the backflow preventer tested again before submitting the form. You can submit the test forms by mail, email or fax. For help locating a certified tester, click on the link: ASSE 5110 Certified Tester.