Fire service certification and backflow prevention

Backflow Prevention

What is Backflow and how does it affect my business?

Backflow is the unintended reversal of water flow from a property back into Council’s water main. This may occur when there is a sudden reduction in pressure in the reticulation.


Do I need a backflow prevention device for my business?

Yes, you do. Council's water supply could be contaminated by chemicals or liquid substances that are mixed with the water on your property. If contaminated water enters the reticulation scheme, it could be used by other customers causing serious health issues, even death.

Council will assign a default level of hazard based on an assessment of the primary activities being undertaken on site.


A licensed plumber with backflow prevention accreditation can assist in determining the type of device required. If your property has more than one meter you will need to install a device on each of the water meters.


Council requires property owners to ensure that a backflow prevention device is installed.  An annual backflow test is required to be undertaken by an accredited backflow plumber. The test result documentation must be submitted to Council periodically to establish this.

Property owners must arrange the installation, testing, and maintenance of the backflow prevention device.


Who can I get to undertake the regular 12 monthly test of my backflow prevention device?

You need to engage an accredited backflow plumber (PDF 178.8KB). The plumbers on this register are not affiliated with or accredited by Council, nor is any recommendation implied.


For Plumbers

If you are an Accredited Backflow Plumber, Council invites you to register your backflow prevention accreditation with Council.  To be placed on Council’s accredited backflow plumber list please complete the pro forma below and return to Council.

Licensed Plumbing Pro Forma (PDF 200.3KB)


Backflow Prevention Hazard Ratings

Assigning a Backflow Prevention Hazard Rating
A default hazard rating is assigned to a premises based on the business activities undertaken on the premises.  The degree of the hazard rating is guided by recommendations from the Australian Plumbing and Drainage Standards AS/NZS 3500.

Disputing a Hazard Rating
There may be instances where the property owners disagree with the default hazard rating assigned to their premises.  In these cases, they should engage an accredited backflow licensed plumber to re-assess the hazard rating and submit the proposal in writing, to Council for approval.

Change of Hazard Rating
A request to review backflow prevention hazard rating should be made to Council by an approved plumber on behalf of the customer.  Council will review the application and advise of the outcome within 21 days. Please have your plumber complete the Application to review a Backflow Prevention Hazard Rating. (PDF 197.2KB)

If you would like further information please see the fact sheets below

Backflow Prevention Fact Sheet (PDF 921.9KB) 

This fact sheet answers frequently asked questions by property owners regarding installation, maintenance and testing requirements in accordance with Council's Water Connection, Backflow Prevention and Pricing Policy.

Backflow Prevention Fact Sheet for plumbers (PDF 310.2KB)

This fact sheet is designed for plumbers who may install or test backflow prevention devices.


Fire Services

Council policy exempts Fire Services from Water Access Charges if they comply with the Plumbing Code of Australia.  Services that do not comply are subject to Water Access Charges.

Council requires owners of Fire Services to arrange an inspection by a licensed plumber certifying it is a Fire Service. The policy requires these inspections be undertaken between March and May each year.


Once the property owner submits the resulting certificate to Council before the end of May, Council will recognise it as a Fire Service for the following financial year and so exempt it from Water Access Charges.

Last Edited: 08 Jun 2017

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