backflow Device

What is a backflow Device and why do I need one?

A backflow prevention device prevents hazardous substances from inadvertently being drawn into the drinking water system, contaminating it.


All backflow prevention devices must be tested once a year by an approved tester. See a List of Approved Testers(PDF, 137KB) - (updated periodically and sorted by zip codes to find one near you for your convenience. You may select any approved tester to perform the test, all vendors can test within Mecklenburg County).