Backflow Prevention Sydney

Backflow occurs when water from a customer’s property flows backwards into our pipes. This may carry contaminants that can harm people’s health.

Only licensed plumbers with backflow prevention accreditation issued by a registered training organization (backflow plumbers) can inspect, commission and test backflow devices. Backflow prevention devices have one of the following elements to stop water flowing backwards.

It is the responsibility of the property owner to ensure all backflow prevention devices are tested by an approved certifier each year. Apex Plumbing is certified backflow prevention specialists that can assist you with your backflow requirements.

Reduced Pressure Zone Device

Break Tank/Air Gap

Testable Double Check Valve

Reduced Pressure Zone Device

This device has two independent action, non-return valves that are force-loaded to the closed position. A relief valve is positioned between the non-return valves and is arranged to be force-loaded to open to the atmosphere.

Break Tank/Air Gap

This device has an air break (physical gap) between the lowest water service pipe outlet and any upstream tank, fitting or container.

Testable Double Check Valve

This device has two independent action, non-return valves that are force-loaded to the closed position. It is fitted with three test taps for yearly testing.