3/74 Secam St

Mansfield QLD 4122


24 Hours

Backflow & RPZ Testing

December 20, 2023

Ray came out to help. Very polite and professional and knew what he was doing. Appreciated K-Oz responding to a last minute request as had tried other plumbers but no one rang back. Their communication was excellent and turned up when they said they would. Satisfied with the work and pricing and would yes them into the future.


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Backflow Testing, RPZ testing & Repairs

K-Oz Plumbing specialises in Brisbane backflow testing, backflow repairs, RPZ repairs and prevention. We test can and maintain and test backflow devices and valves or test RPZ units in Brisbane.

Do you have a final reminder notice from the Brisbane City Council or local Council– Test Reports Overdue?

Have a Council backflow Prevention Device Permit?

Did you know failure to comply may result in $3300 fine per device?

K-Oz Plumbing licences Brisbane backflow specialists regularly test, repair and install new backflow prevention devices.

K-Oz Plumbing Services include:

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Blocked Drains & Toilets

Blocked Toilet, Blocked sewer, Blocked stormwater, Blocked ORG, Blocked Drain, call K-Oz Plumbing for help with your Blocked Drains in Brisbane.

Emergency Plumber Brisbane

Emergency plumber to help, Cracked pipe repairs, burst pipes, leaking pipes K-Oz Plumbing can fix your Brisbane plumbing issues today.

Hot Water

No hot water, Hot water system repairs and replacements, gas hot water, electric hot water and solar hot water – Rheem, Vulcan, Saxon, Everhot, Bosch, Rinnai, Dux – Call K-Oz for help.


Leaking pipes, burst pipes, burst flexhoses, Leak detection – leak reports – we can help replace and fix your leaks.


Dripping shower heads, water shower head replacements, blocked shower heads, blocked shower grate – K-Oz Plumbing can help.


Leaking taps, tap washer replacements, cracked taps, dripping tap call K-Oz Plumbing for help.

Frequently Asked Questions

A backflow prevention device is a valve that prevents
potentially harmful polluted water from entering the city’s
drinking water supply when an incident such as a drop in
pressure causes water to be drawn back into the main from
private properties  

Backflow prevention devices safeguard the mains water supply against harmful contaminants. These backflow devices include the following – Dual Check Valves or Double Check Valves, Single Check Valves, Vacuum Breaker Valves & Reduced Pressure Zone Devices or RPZ valves.
Backflow prevention devices, need to be tested every year to make sure they are operating correctly. This testing every 12 months is enforced by varying councils and state legislation in Queensland to safeguard against contaminated sources entering the water supply. You must ensure your plumber has Backflow Prevention endorsements on their licence. A test report i.e. a form 9 is then issued directly to your council to certify that each has been tested and certified.

This is a pain point question? This is our statement to be your solution. Contact us today!

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