Unit of competency Outline

Date retreived
22/07/2026 5:39 PM AWST

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Design trade waste pre-treatment systems

Design trade waste pre-treatment systems

Unit of competency
National Code
CPCPPS5028
State Code
OCN17
TGA Status
Current
DTWD Status
Approved
Current Release Number
2.00
Current Release Date
09/12/2021
View on TGA
State Implementation and Classification
Approved Date
01/06/2021
Field of Education
040327 - Plumbing
Original Release Date
01/06/2021
Nominal Hours
30
Description
This unit specifies the skills and knowledge required to design trade waste pre-treatment systems for commercial and industrial premises, such as commercial kitchens and laundries, mechanical workshops and commercial swimming pools, prior to discharge to authority’s point of sewer connection. The role involves interaction with architects, builders, suppliers, clients and relevant planning authorities and requires a sound understanding of applicable legislation, standards and codes.The unit requirements are typically undertaken by experienced tradespeople such as hydraulic design consultants or persons in a supervisory capacity in relation to plumbing services on a new or existing site.In some jurisdictions, this unit of competency may form part of accreditation, licensing, legislative, regulatory or certification requirements.
Notes
Elements and Performance Criteria
1 Evaluate design parameters.
  • 1.1 Establish scope of work for trade waste pre-treatment systems prior to discharge to authority’s point of sewer connection.
  • 1.2 Establish performance requirements considering safety of system users or building occupants.
  • 1.3 Determine design requirements from relevant Australian Standards, codes, plans, specifications, authorities’ requirements and client brief.
  • 1.4 Apply sustainability principles and concepts as part of the design process.
  • 1.5 Interpret manufacturer requirements and trade and technical manuals.
  • 1.6 Conduct research to outline design parameters.
  • 1.7 Analyse trade waste applications and conduct a cost-benefit analysis to compare a range of pipe materials and system designs.
2 Plan and detail system components.
  • 2.1 Plan layout of pipework systems including type and location of fittings and controls.
  • 2.2 Plan and detail solid removal systems.
  • 2.3 Plan and detail grease and oil interceptors, neutralising chambers and wash-down areas incorporating stormwater exclusion.
  • 2.4 Plan and detail diffused air flotation systems.
  • 2.5 Detail bacterial treatment processes and combined and specialised treatment processes for a range of commercial and industrial applications.
  • 2.6 Incorporate general housekeeping procedures to minimise discharge of trade waste.
  • 2.7 Perform system calculations for a range of applications.
  • 2.8 Size and detail pump well, pumps, controls and equipment requirements.
  • 2.9 Design pipe supports for a range of applications.
  • 2.10 Specify approved materials, jointing methods and installation requirements for trade waste pre-treatment systems.
3 Design and size systems.
  • 3.1 Design and size trade waste pre-treatment systems for commercial and industrial premises.
  • 3.2 Design and size trade waste pre-treatment systems using calculations and local authorities and regulators’ policies and requirements.
  • 3.3 Design flow monitoring systems for trade waste applications.
  • 3.4 Design venting of trade waste systems to comply with local authority requirements.
4 Prepare documentation.
  • 4.1 Produce a return client brief of the preferred design.
  • 4.2 Prepare plans and specifications for trade waste pre-treatment systems.
  • 4.3 Prepare testing and commissioning schedule.
  • 4.4 Produce operation and maintenance manual including information on how to properly and safely maintain the system.
No information
No information
Replaces
State Code National Code Title Type
WF943 CPCPPS5028A Design trade waste pre-treatment systems Unit of competency
State Code National Code Title Type
BGB3 CPC50620 Diploma of Hydraulic Services Design Qualification