Unit of competency Outline

Date retreived
22/07/2026 7:12 AM 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.

Troubleshoot drainage systems

Troubleshoot drainage systems

Unit of competency
National Code
AHCDRG303A
State Code
D6811
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
10/06/2011
View on TGA
State Implementation and Classification
Approved Date
11/04/2013
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
11/04/2013
Nominal Hours
30
Description
This unit covers the process of troubleshooting blockages in drainage lines and defines the standard required to: plan and prepare for the work; inspect the site to determine access to drainage lines; isolate appliances/fixtures/fittings and related assemblies (where required); use manual and mechanical drain clearing equipment; test the system and clean up after locating and clearing any blockages.
Notes
Elements and Performance Criteria
1. Plan job
  • 1.1. Equipment is selected and checked for safe operation.
  • 1.2. Appropriate personal protective equipment and tools are selected and used according to Occupational Health and Safety (OHS) requirements.
2. Inspect site
  • 2.1. Site is inspected to locate blocked section of drainage lines.
  • 2.2. Work requirements and responsibility for repair is determined and appropriate authorities/persons notified of the intention to commence work.
3. Determine access to drainage lines
  • 3.1. Plan of plumbing system is determined and access points located.
  • 3.2. Digging is carried out without unnecessary damage to buildings, site, environment or existing fixtures/fittings.
4. Carry out job
  • 4.1. Manual lifting and handling techniques are used according to OHS requirements.
  • 4.2. Hand tools and equipment are selected to perform work.
  • 4.3. Mechanical equipment is assembled and used according to manufacturer's instructions and OHS requirements.
  • 4.4. Access to drainage lines is obtained to allow blockage to be cleared.
  • 4.5. Blockage is cleared or blocked section is replaced according to enterprise, environmental and OHS procedures.
5. Check job
  • 5.1. Drainage line is tested to confirm blockage is cleared from pipe system.
  • 5.2. Drainage line is repaired/resealed to permit normal use.
  • 5.3. Relevant persons/authorities are advised that repairs have been completed and the drainage line has been commissioned for use.
6. Clean up site, materials and equipment
  • 6.1. Work area is cleaned and aligned, with debris/waste disposed of according to enterprise, environmental and OHS procedures.
  • 6.2. Materials and equipment are maintained according to enterprise, environmental and OHS procedures, and returned to store.
RANGE STATEMENT
The range statement relates to the unit of competency as a whole.
Drainage systems may include:
surface drains
culverts
mole drains
sand slit
sub-surface traps
pit and trap systems
dune and swale systems
reed beds
water-recycling pumps and baffles.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:
plan and prepare for the work
inspect the site to determine access to drainage lines
isolate appliances/fixtures/fittings and related assemblies (where required)
use manual and mechanical drain clearing equipment
test the system and clean up after locating and clearing any blockages.
Context of and specific resources for assessment
Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.
Replaces
State Code National Code Title Type
S3687 RTE3604A Troubleshoot drainage systems Unit of competency
Replaced By
State Code National Code Title Type
BAR45 AHCDRG303 Troubleshoot drainage systems Unit of competency