Backflow prevention
A backflow prevention device stops polluted or contaminated water entering the drinking water supply through cross-connections or back-siphonage.
Backflow prevention devices must be installed by a licensed plumber and registered with Council after the initial test.
Annual inspection and testing
If your property has a backflow prevention device, you must have it inspected and tested annually by a backflow-endorsed licensed plumber. Penalties apply to property owners who fail to have their devices tested annually.
The plumber must lodge the test results (Form 9) with Council within 10 days of the inspection.
Council’s preferred lodgement method is via email to pladmin@cairns.qld.gov.au.
The Form 9 can also be lodged via mail or over the counter at Customer Service, 119 – 145 Spence St, Cairns.
Last Updated: 24 November 2022
Latest News > All News
Council backs key community partnerships
Council has endorsed a series of agreements that will strengthen support for sport, culture, heritage and environmental initiatives across the...
29 June 2026
Strengthening focus on disaster resilience
Council has endorsed the Local Resilience Action Plan (LRAP), providing a strategic framework to guide future disaster resilience and risk...
29 June 2026
DA approved for new CQUni Cairns campus
The Cairns community is a step closer to more local education opportunities, new jobs and a stronger future workforce, following...
26 June 2026