Unit of competency Outline
Date retreived
22/07/2026 4:51 PM AWST
22/07/2026 4:51 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Design and size sanitary drainage systems
Design and size sanitary drainage systems
Unit of competency
National Code
CPCPDR4011A
CPCPDR4011A
State Code
D7431
D7431
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
11/10/2011
Field of Education
040327 - Plumbing
Original Release Date
11/10/2011
Nominal Hours
100
Description
This unit of competency specifies the outcomes required to design, size and document the layout of sanitary drainage systems for unit developments.It covers the preparation for the work, the identification and confirmation of system specifications and requirements, the planning of the system layout, and work finalisation processes, including records and documentation.
Notes
Elements and Performance Criteria
1. Prepare for planning.
- 1.1. Nature and scope of planning task are identified and confirmed.1.2. Safety (OHS) requirements associated with the installation of sanitary drainage systems and workplace environmental requirements are adhered to throughout the work.1.3. Work is organised and sequenced in conjunction with others involved in or affected by work.1.4. Tools and equipment required for planning, sizing and documenting the layout of sanitary drainage systems, including personal protective equipment, are selected and checked for serviceability.1.5. Work area in which the planning process is to be conducted is prepared.
2. Identify system requirements.
- 2.1. Information and specifications for the required work are obtained and confirmed, if necessary by site inspection.2.2. Regulations and Australian standards relevant to the work are consulted and applied to all aspects of the work.2.3. Quantity, location and type of take off points and legal points of discharge are determined from development drawings, plans and specifications.2.4. System is sized according to relevant Australian standards and statutory and regulatory authorities' and workplace requirements.2.5. Sustainability principles and concepts are applied to work preparation and application.
3. Design system layout.
- 3.1. Design sanitary drainage systems according to development plans, specifications, relevant Australian standards and workplace procedures.3.2. Materials required are specified and optimised from proposed design according to relevant Australian standards.3.3. Plans are recorded in accordance with regulatory authorities' and workplace requirements.
4. Restore work area.
- 4.1. Work area is restored in accordance with workplace procedures.4.2. Tools and equipment used in the process are refurbished and left in accordance with workplace procedures.4.3. Information is accessed and documentation, including work backup, is completed in accordance with workplace requirements.
No information
No information
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| W9662 | CPCPDR4001A | Plan, size and lay out sanitary drainage systems | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| WF865 | CPCPDR4011B | Design and size sanitary drainage systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| D417 | CPC40911 | Certificate IV in Plumbing and Services | Qualification |