CPCPWT4022A – Commission and maintain backflow prevention devices

CPCPWT4022A – Commission and maintain backflow prevention devices

 Classroom Based Training


This backflow prevention course will cover all aspects of the Commissioning & Maintaining Backflow Prevention Devices unit and is designed to suit all levels of experience. It encompasses a range of topics including safe work procedures, backflow definition & history, types of valves / devices & their application, backflow preventers, troubleshooting, selecting and using backflow testing and measuring devices, safely testing and reporting, rpz valve installation, dual check valves, suppliers & brands. As a part of this course, representatives from major RPZ manufacturers & the head inspector from Sydney Water often attend to provide critical insights.

Course Details

Part 1: Materials, Design & Performance Requirements Of Backflow Prevention Devices
Understanding minimum requirements as per AS/NZS 2845.1:2010 (Incorporating Amendment No. 1)

Part 2: Registered Air Gaps & Registered Break Tanks

Specific requirements for registered air gaps, including those incorporated in break tanks, used as backflow prevention devices for the protection of water supplies, as per AS 2845.2—2010


Part 3: Field Testing & maintenance Of Testable Devices
Operational checking (which may include measurements) to ascertain the level of performance of a backflow prevention device for the purpose of maintaining its specified performance, as per AS 2845.3—2010 (Incorporating Amendment No. 1)

Entry Requirement

The participants must possess a sufficient grasp of the English language, and may be required to undertake an LLN test to assess whether their literacy and numeracy skills are sufficient to cope with the training program. The participant may also be required to hold the following:  

  • A current white card;
Course Duration

The maximum duration of this unit is expected to be approximately 80 hours. It is calculated based on a recommended overall average minimum number of hours devoted to study each week which is 7 hours per week. The student will be required to study for 12 weeks in total.

Delivery Mode

This unit is delivered by Blended Mode. This includes: 

  • Unit Assessment and Learning (focused on underpinning knowledge and skills); and 
  • Structured Workplace Learning (focused on extending and refining practical skills).

This is summarised below.

Students will study the unit through a combination of textbooks, face-to-face training and tutorials which includes unit readings and web links.

Version of qualification
Status Superseded
Release 1
Release Date 07 Feb 2013
Note Is superseded by and equivalent to CPCPWT4022 - Commission and maintain backflow prevention devices (26 Nov 2020)


Upon successful completion of this course you will be awarded a Statement of Attainment in:

CPCPWT4022A – Commission & Maintain Backflow Prevention Devices and Commission

Plumbers in NSW can use this Statement of Attainment to attain backflow certification by uploading their details to the Sydney Water ‘Accredited Backflow Plumbers’ contact list on the Sydney Water website.

Note: This is unit is an industry endorsed ‘Accreditation’ and does not have a licensing outcome.

 Ready to start?

Select your study mode for details
Classroom Based Training

Units are trained over 2 consecutive days.