Elements and Performance Criteria
- Install surface irrigation systems
- Check water supply is compatible with system specifications
- Interpret plan, mark out structures and peg earthworks
- Prepare and maintain beds, diversion and conveyancing structures
- Install diversion and conveyancing structures, channels and beds
- Prepare bed surface with roto-buck
- Test structures for configuration, flow rates and capacity
- Complete water measurement and tail-water works
- Operate pumps and siphons
- Prime pumps and open or close valves and controls
- Position and set up pipes, system equipment and outlets
- Prime and start siphons and other delivery mechanisms
- Implement start up sequence and slowly build up water levels and pressure
- Check pressure at the head-works and control valves
- Distribute water evenly to the targeted areas with minimal wastage and run-off
- Irrigate area and observe time lag between shut down and end of watering to minimise run-off and deep percolation
- Measure and interpret water levels, flow rates and volume of water used
- Monitor drainage and tail-water systems
- Inspect and maintain a surface irrigation system
- Record damage and blockages with contaminants by damage type, location and the section of the system affected
- Record and report damaged or faulty pumps, valves, electrical components and computer control systems and take action to effect repairs
- Service water measuring, diversion and conveyancing, and distribution structures
- Carry out vegetation control to keep all system components clear
- Undertake servicing and repair of mechanical equipment