22189 version 1
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Maintain an irrigation system used in horticulture
Level
3
Credits
5
Purpose
This unit standard is for people working in horticulture. People credited with
this unit standard are able to: clean a filter; repair a leaking/broken irrigation
pipe; manage pre- season maintenance of an irrigation system; and maintain
an irrigation system.
Subfield
Horticulture
Domain
Production Horticulture
Status
Registered
Status date
25 July 2006
Date version published
25 July 2006
Planned review date
31 December 2011
Entry information
Open.
Replacement information
This unit standard and unit standard 22188 replaced unit
standard 779.
Accreditation
Evaluation of documentation and visit by NZQA, industry
and teaching professional in the same field from another
provider.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0032
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Workplace procedures refer to verbal or written instructions to staff on procedures for
the worksite and equipment.
2
Legislation relevant to this unit standard includes but is not limited to the Health and
Safety in Employment Act 1992 and the Resource Management Act 1991.
 New Zealand Qualifications Authority 2016
22189 version 1
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Elements and performance criteria
Element 1
Clean and maintain two filters.
Range
may include but is not limited to – O ring (disc), mesh, gravel or sand, cartridge,
hydrocyclone.
Performance criteria
1.1
Filters are described in terms of their working principles and maintenance
requirements.
1.2
Two standard filters are cleaned, serviced and maintained.
Element 2
Repair a leaking/broken irrigation pipe.
Range
two of the following – alkathene, PVC, threaded galvanised piping.
Performance criteria
2.1
Damaged pipe is repaired with correct replacement equipment.
2.2
Leaks are sealed so that there is no water or pressure loss.
2.3
Pipe is restored to its original position.
Element 3
Manage pre-season maintenance of an irrigation system.
Performance criteria
3.1
System is checked and cleaned to ensure good working order.
Range
check all joiners and emitters; flush out the system; clean all filters;
replace any damaged irrigation components.
Element 4
Maintain an irrigation system.
Performance criteria
4.1
Irrigation system is inspected daily and any blocked emitters and leaks are
identified and reported in accordance with workplace procedures.
 New Zealand Qualifications Authority 2016
22189 version 1
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4.2
Diary of maintenance work on irrigation system is completed and recorded for
three consecutive months.
4.3
Portable system, if necessary, is stopped, moved and started with no crop and
irrigation equipment damage.
4.4
Irrigation components are maintained with the manufacturer’s recommended
replacement item so that there is no leak or pressure variation.
4.5
Output from an emitter or per unit area is measured regularly and recorded
according to workplace procedures.
Please note
Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Primary Industry Training Organisation via their website
www.primaryito.ac.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016