| Drain system components include but are not limited to: Pipes, Bends, Junctions, Couplings, Access Fittings, Gulleys, Rodding eyes, Inspection eyes, manholes and access chambers.
Range of inspection methods include but are not limited to: Observation, use of cleaning rods to locate blockages, drain pressure test.
Drain cleaning methods include but are not limited to: Drain cleaning rods, drain cleaning chemicals.
Pipes and fittings used in the installation of below ground drain systems include but are not limited to: uPVC, earthenware (Vitrified clay), fibre reinforced cement, high-density polyethylene and cast iron.
Trench excavations include but are not limited to: Arrangements for the battering of side slopes in non-cohesive soils and for shoring.
Plumbing tools include but are not limited to: Hand tools (measuring instruments, marking tools, holding tools, cutting tools, fastening, and cleaning tools), power tools (excavating equipment, cutting tools).
Plumbing equipment includes but is not limited to: Drain cleaning machines, compactors.
Existing services and built-in items that are to be identified and protected include but are not limited to: Other plumbing pipes and fittings, electrical cables.
|Names, functions and locations of:
Safety equipment and protective clothing requirements to be used when installing, maintaining and testing below ground drain systems.
Purpose of processes and procedures of:
The purpose of preparing excavations to line and level and the compaction of bedding and backfilling of soil to specifications.
Attributes, properties, characteristics related to:
Tools, equipment and materials used in the installation, maintenance and testing of below ground drain systems and manufacturers specifications for maintenance of tools and equipment and storage of materials.
Cause and effect, implications of:
Selection of soil for bedding and backfilling.
Permeability of soil types for application of on-site sanitation systems.
Categories of things, processes, concepts:
The definitions of VIP toilet structures, conservancy tanks, septic tanks, French Drains, jetting and rodding techniques, rodding and inspection eyes, and compaction specification terminology.
Procedures and techniques:
Alternatives to waterborne sewer systems.
Jetting and rodding techniques.
Regulations, legislation, agreements, policies:
Alternatives to waterborne sewer systems.
National Building Regulations.
Code of Practice for the application of the National Building Regulations (SANS 10400) Part P Drainage and Part Q Non-Waterborne Means of Sanitary Disposal.
Local Authority bylaws.
Occupational Health and Safety Act 1993.
SANS specifications applicable to drainage materials.
SANS 10252-2: Code of Practice, Water Supply and Drainage for Buildings Part 2: Drainage installations for Buildings.
Theory-rules, laws, principles:
Minimum gradients for drainage systems and the implications of incorrect installation.
The application of basic plumbing principles in the context of below ground drain systems installation, maintenance and testing.
VIP toilet structures, conservancy tanks, septic tanks, French Drains.
Waterborne and non-waterborne drainage systems.
Notes to Assessors:
Assessors should keep the following general principles in mind when designing and conducting assessments against this unit standard:
Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable, then focus assessment around each specific outcome, or groups of specific outcomes. Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.
At this level some errors are to be expected. Assessors must use professional judgement in evaluating competence.
Make sure evidence is gathered across the range as expressed under the title. Specific range statements under individual outcomes or assessment criteria are illustrations, from which learning programme developers can select. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.
The task of the assessor is to gather sufficient evidence, of the prescribed type and quality, as specified in this unit standard, that the candidate can achieve the outcomes again and again.
All assessments should be conducted in line with the following well-documented principles: assessment should be appropriate, fair, manageable, integrated into work or learning, valid, and consistent. Evidence should be authentic, sufficient, and current.
Assessment of this standard can be carried out through continuous assessment throughout the course of study and specific performances assessed.
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