Backflow Prevention Canberra Testing, Installation & Repairs

backflow prevention canberra

About Backflow Prevention Canberra

Backflow prevention Canberra is critical to ensuring the safety of Australians’ drinking water. It ensures that the flow of water is not reversed due to a change in pressure, protecting our water supply from contamination.

Backflow is the reverse flow of water in your plumbing pipes and can be caused by:

  • A pressure drop in the main pipe system
  • A pump operating on a site that is higher in elevation than the mainline.
  • Plumbing issues, insufficient and unprofessional installation, and hoses submerged in tanks, pools, and buckets
  • Backflow problems can cause chemicals, bacteria, mud, and debris to contaminate your water system, putting your health at risk.

Backflow prevention testing and installation can help you save thousands of dollars on water bills and flood damage.

Depending on the property you own or occupy, local water authority legislation requires backflow prevention devices. If you have a backflow prevention device installed, it must be inspected and maintained on a regular basis (typically annually) to ensure that no wear or damage causes the device to fail.

It is your job to assure compliance and the well-being of the community by having a plumber assess your property risk and taking the necessary procedures.

You should get your water and plumbing systems maintained on a regular basis in the following areas. This is to keep in compliance with the Plumbing Code of Australia 2011 and the Australian/New Zealand Standard AS/NZS.


Commercial buildings and some residential households require backflow prev devices.


Backflow prevention devices are available in a range of shapes and sizes, and they can stop both backflow and back-siphonage. Check the o-rings and clean the gates or cassette on a regular basis. This is to ensure that the backflow protection system is working properly. 

Our backflow plumbers are particularly qualified to install, maintain, and test backflow protection devices. We can also work throughout Canberra and New South Wales.

Identifying the Threat of Backflow

Backflow prevention devices (also known as air gaps) are used to safeguard potable water supplies (drinking water) against contamination or pollution produced by backpressure in the water supply pipe. Each property connected to a main water supply system should have its risk level assessed and classified. The activities that occur on your property will determine this. The danger levels are as follows:

High – where the potential failure or absence of backflow prevention may cause death

Medium – where the potential failure or absence of backflow prevention may endanger the health

Low – where the potential failure or absence of backflow prevention may cause a nuisance but does not endanger the health or cause injury

Why choose us for backflow prevention testing, maintenance, and installation?

The JML Plumbing & Gas team is here to help you with your plumbing needs. We will commit to providing quality service to our customers and keeping their properties safe from any potential dangers such as backflow.

The valves within the backflow prevention device require testing yearly to ensure that they are functioning as the manufacturer intended. The backflow prevention device is there to protect you and others, from receiving contaminated water in our potable water or clean water source, i.e. the Government water supply. 

We test and record every aspect. We also have annual reminders so you never need to worry about the backflow devices reaching their expiry date, keeping your building/site up to standard. 

If you want to know more about backflow prevention devices, you can give us a call at 02 6193 4089

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The prevention of water pollution is not necessarily something that people consider when dealing with plumbing maintenance, but it should be. The backflow of contaminated water into the potable water supply can cause a number of health issues for humans, wildlife, and aquatic life, as well as damage to property.

Cross-contamination from a potentially polluted source (backflow) is not only unpleasant; it can be extremely dangerous to your health. 

Don’t wait for water pollution to strike your home or commercial businesses. Call JML Plumbing & Gas today and find out how we can help you avoid it. 02 6193 4089

Know more about our services here.

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