AHCIRG438 — Select and manage pumping systems for irrigation

1 Identify irrigation system requirements from the irrigation design

• 1.1Identify the components of the irrigation pumping system
• 1.2Determine the water source and height of pull for water into the system
• 1.3Determine the water output for irrigation
• 1.4Calculate the total friction loss of irrigation components

2 Select pump according to type, installation, range of flow rates, operating head and delivery distance

• 2.1Select pump type based on pumping task and placement and the power source
• 2.2Calculate total operating head requirements
• 2.3Calculate pump discharge requirements based on irrigation output requirements and friction losses in the system
• 2.4Determine pump motor speed and power requirements
• 2.5Determine pump limiting suction lift
• 2.6Interpret pump performance curves when selecting an efficient irrigation pump
• 2.7Determine the size of the impeller from the pump curve

3 Supervise installation of pumps

• 3.1Ensure pump is level and sited as close as possible to water source
• 3.2Verify pump is properly anchored and connections are airtight
• 3.3Confirm pump and motor connection are correctly aligned and motor is ventilated
• 3.4Verify filters and valves are correctly fitted and orientated
• 3.5Check pump is connected to the irrigation controller if required

4 Oversee commissioning and testing of pumping system

• 4.1Develop pre-start and start up procedures
• 4.2Check delivery performance and verify power usage and water output against requirements and pump specifications
• 4.3Ensure pumping system is checked for leakages and cavitation
• 4.4Confirm pumping system is operating effectively

5 Develop maintenance procedures for the pumping system

• 5.1Develop routine maintenance procedures to rectify the effects of normal wear
• 5.2Develop periodic inspection checklists to assist in maintenance scheduling
• 5.3Carry out pump overhaul or repairs
• 5.4Keep pump maintenance records, including details of pump and pumping system components for ordering

6 Carry out troubleshooting on pumping systems

• 6.1Investigate lack of discharge or pressure and change settings or components
• 6.2Investigate loss of water suction and make alterations to placement or fix leakages
• 6.3Investigate cavitation in pumps and change settings or components
• 6.4Investigate excessive power consumption and review design and pump selection and check for mechanical defects

What does an assessment tool for AHCIRG438 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for AHCIRG438 needs to address all 57 unit components: 6 elements with 28 performance criteria, 7 performance evidence requirements, 19 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for AHCIRG438?

Auditori pulls the current release of AHCIRG438 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for AHCIRG438 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing AHCIRG438 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of AHCIRG438, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.