Home » Builders & Plumbers » Irrigation Backflow Device

Irrigation Backflow Prevention Device Requirement

In accordance with the WCID No. 17 Irrigation Ordinance, all irrigation systems require high hazard backflow prevention devices with air gaps (RPZ type.)

After completing an irrigation project, the installer should have the RPZ tested by a certified backflow tester.  Once the backflow device has been tested, the installer can request the final inspection of the system.  The inspector should be provided with a copy of the RPZ test certificate.

Back to Top Arrow