Backflow Prevention & RPZD Valves

Backflow Testing, Servicing And Installation

Backflow is prevented by installing a backflow prevention device. This may be a double-check valve, an RPZ (reduced pressure zone) or a non-return valve all used to protect the water supply of your home or business from possible contamination.

It is important to keep backflow prevention valves functioning properly as a malfunctioning backflow device can leak contaminated fluids back into the water supply.

Do you need Backflow Prevention Valves installed or serviced?

CDI Plumbing can install new RPZ valves and backflow preventers for your property or replace broken valves with new ones.

Properties fitted with RPZ valves or backflow prevention devices of some kind are usually required by the local water authority to be tested and maintained annually.