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Backflow Testing & Certification
Keep your property, site or vehicle compliant.
At Reed Plumbing and Drainage Solutions, we provide professional backflow testing, certification, reporting and repairs for commercial properties, body corporates, trade partners and vehicles across Melbourne.
Backflow prevention devices help protect the drinking water supply by stopping contaminated water from flowing back into the main water network. Regular testing confirms your device is working correctly and helps you meet water authority requirements.
What is backflow testing?
Backflow testing checks that your backflow prevention device is operating as it should. A licensed backflow plumber will inspect and test the device, confirm whether it passes or fails, and provide the required report or certification.
If the device fails, we can explain the issue clearly and assist with repairs, replacement or retesting where required.
How can we help?
Annual Backflow Testing
We test backflow prevention devices for properties and commercial sites to help keep your compliance records up to date.
RPZ Valve Testing
Our team can inspect, test and report on Reduced Pressure Zone valves to confirm they are operating correctly.
Vehicle & Air Gap Testing
We assist with backflow and air gap testing for applicable vehicles, water carts and tankers.
Repairs & Retesting
If your device fails, we can provide practical repair options and complete retesting once the issue is resolved.
Benefits of Regular Backflow Testing
- Protects the Water Supply Backflow prevention helps stop potentially contaminated water from entering the drinking water system.
- Helps Maintain Compliance Regular testing supports your property, business or vehicle compliance requirements and keeps your records up to date.
- Identifies Faults Early Testing can detect issues with valves, seals or device performance before they become bigger problems.
- Clear Reporting We provide straightforward documentation, so you know whether your device has passed and what action is needed next.


Frequently Asked Questions About Evaporative Cooling Services
Many testable backflow prevention devices require annual testing. The exact requirement can depend on the water authority, property type, hazard rating and device installed.
If your device fails, we’ll explain the issue clearly and provide repair, replacement or retesting options where required.
Yes. Reed Plumbing can assist with backflow and air gap testing for applicable vehicles, water carts and tankers.