Backflow Testing Adelaide – Annual Compliance Made Easy

Backflow Testing Unit

Backflow Testing Adelaide – Annual Compliance Made Easy

Backflow testing isn’t optional in South Australia — it’s the law. Deadshort Services provides annual backflow testing, certification, repairs, and upgrades for businesses and property owners across Adelaide. Our licensed plumbers hold full backflow endorsements, and every test is carried out with calibrated gauges in line with AS/NZS 3500.1 and AS 2845.

With over 35 years of plumbing expertise and Adelaide’s only true multi-trade team, we make compliance simple: test, certify, and lodge your paperwork with zero stress.

Why Backflow Testing is Mandatory in South Australia

The SA Government requires all medium and high-hazard sites to install and maintain testable backflow prevention devices at the property boundary. These devices must be:

  • Correctly matched to the hazard rating (double check for medium, RPZ or air gap for high)

  • Tested every 12 months by a licensed plumber with backflow endorsement

  • Recorded and lodged via the official Commission/Inspection/Maintenance Report with SA Water or the Office of the Technical Regulator

  • Verified with calibrated gauges (calibration certificates renewed annually as required by AS 2845)

Failure to comply can lead to warnings, fines, or interruption of water supply.

Who Needs Backflow Testing in Adelaide?

Backflow isn’t just a commercial issue — it applies to a wide range of sites:

  • Cafés, restaurants, breweries & food processors

  • Medical clinics, dentists & pathology labs

  • Salons, tattoo studios & gyms

  • Schools, universities & childcare centres

  • Commercial & industrial facilities with alternate water supplies or chemicals

  • Fire services, irrigation systems & properties with rainwater-to-mains connections

If your site activity changes, your hazard classification can change too. We can reassess and upgrade your device as required.

Our Backflow Testing Process

  1. Site Check – confirm device type, location, and hazard rating

  2. Testing – carry out full test using calibrated gauges to AS 2845 standard

  3. On-the-Spot Repairs – minor issues fixed during testing where possible

  4. Report & Lodgement – complete the official Commission/Inspection/Maintenance Report and lodge with SA Water or OTR

  5. Annual Reminder – we track your renewal date so compliance never slips through the cracks

Types of Devices We Test and Certify

Backflow prevention isn’t one-size-fits-all. Different properties require different devices depending on the level of risk. That’s why Deadshort Services covers every type of system used across Adelaide.

  • RPZ valves, double check valves, and single check devices
    Firstly, we test reduced pressure zone (RPZ) valves for high-hazard sites, double check valves for medium-hazard systems, and single check devices where they are still required. Each is carefully inspected to ensure safe operation.

  • Fire service backflow (hydrant & sprinkler systems)
    In addition, fire services often include dedicated backflow devices. Hydrant and sprinkler systems must be tested every year, so we make sure your property stays compliant without disrupting your safety systems.

  • Irrigation and alternate supply interfaces
    Furthermore, irrigation and rainwater-to-mains connections can create high contamination risks. We test and certify devices protecting these systems, keeping both your property and Adelaide’s water network safe.

  • Break tanks and air gaps
    Finally, some sites rely on containment measures such as break tanks or air gaps. We confirm these installations are functioning correctly and meet current Australian Standards.

Backflow testing Sheet

What Happens If Your Device Fails

Not every device will pass its annual test. When that happens, Deadshort Services provides straightforward solutions:

  • Repairs on the spot – Often, minor faults can be fixed during the initial visit, avoiding extra downtime.

  • Replacements with approved devices – If a device is beyond repair, we supply and install the correct model to match your site’s hazard rating.

  • Upgrades for outdated systems – Some older or incorrectly specified devices must be upgraded. We handle this seamlessly so your compliance stays on track.

Most importantly, every service includes the compliance paperwork you need. That means you’ll receive:

  • Completed Commission/Inspection/Maintenance Report

  • Calibration certificate evidence from our testing equipment

  • Confirmation that your results were lodged with SA Water or the Office of the Technical Regulator

As a result, you’ll always be covered when auditors, insurers, or councils request proof of compliance.

Pricing That Makes Sense

We keep it straightforward — backflow testing is quoted per device, not per call-out.

  • One device? Clear unit price.

  • Multiple devices? We provide a simple volume-based rate.

This way, you always know what you’re paying for, with no hidden extras. If a repair or replacement is needed, we quote before proceeding.

Why Adelaide Businesses Choose Deadshort Services

One Number. One Call. Multiple Trades.

FAQ—Backflow Testing Adelaide

1. What is backflow and why is it dangerous?
Backflow is reversed water flow—caused by pressure changes—that can introduce contaminants into drinking water.

2. How often must I test backflow devices in South Australia?
Annually—every 12 months is the legal requirement, aligned with AS/NZS standards.

3. Who can conduct backflow testing in SA?
Only a licensed plumber with backflow endorsement and calibrated equipment.

4. What happens during the test?
Water is briefly shut off, valves are tested, pressure is measured, then the system is restored and results lodged.

5. What types of backflow devices are there?
Common devices include RPZ valves for high hazard, double check valves for medium, pressure vacuum breakers, and air gaps.

6. Where are they installed?
Typically at the property boundary or where potable lines meet non-potable sources like irrigation or rainwater systems.

7. What if I don’t comply?
Penalties include fines, warnings, or water disconnection. Authorities will enforce compliance strictly.

8. How are test results handled?
The plumber submits the report to SA Water or OTR and provides you with a copy for your records.

9. How do I know what device I need?
We assess your hazard rating and recommend the appropriate device—whether it’s RPZ, double check, or air gap.

RAA Trade Assist Partner

Deadshort Services are your go-to 24/7  Local Adelaide Gas Plumbers with years of experience in the industry. 

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