This unit of competency specifies the outcomes required to test, commission and maintain backflow prevention devices in water services.  It covers preparation for work, identification of testing and commissioning requirements, physical testing and commissioning of devices, maintenance of devices and completion of work finalisation processes.

Unit details

Study level:
Vocational and further education (TAFE)
Unit code:


Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each competency unit's learning outcomes and performance criteria requirements, including the setting of project and work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines. Students will be expected to demonstrate the following required skills: - communication skills to: access information; determine requirements; enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand, and; follow instructions; - report faults; - use language and concepts appropriate to cultural differences; - use and interpret non-verbal communication, such as hand signals; - initiative and enterprise skills to identify and accurately report to appropriate personnel any faults in tools, equipment or materials; - literacy skills to: complete workplace documentation; - read and interpret: documentation from a variety of sources, and; plans and specifications; - numeracy skills to apply measurements and calculations; - planning and organising skills to: plan and sequence tasks with others, and; plan and set out work; - teamwork skills to work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities; - technical skills to test, commission and maintain high, medium and low hazard backflow prevention devices in water services, and; - technology skills to: access and understand site-specific instructions in a variety of media, and; use mobile communication technology.Students will also be expected to demonstrate the following knowledge: - basic hydraulics and mechanics relevant to backflow prevention devices in water services; - characteristics and applications of the materials and backflow prevention devices; - effective isolation procedures; - job safety analysis (JSA) and safe work method statements (SWMS); - process of testing, commissioning and maintaining backflow prevention devices; - processes for accessing information and for calculating material requirements; - properties of water, including pressure and flow rates; - relationship with other service controls and devices; - relevant statutory requirements related to testing and commissioning backflow prevention devices; - SI system of measurements; - standards applicable to the service; - testing equipment and techniques, and; - workplace and equipment safety requirements.

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

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