This unit of competency specifies the outcomes required to design, size and document the layout of sanitary drainage systems for unit developments.  It covers the preparation for the work, the identification and confirmation of system specifications and requirements, the planning of the system layout, and work finalisation processes, including records and documentation.

Unit details

Study level:
Vocational and further education (TAFE)
Unit code:


Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each unit's learning outcomes and performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines. Students will be expected to demonstrate the following required skills: - communication skills to: access information; enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand; follow instructions;identify requirements, including system requirements; - use language and concepts appropriate to cultural differences; - use and interpret non-verbal communication, such as hand signals; - initiative and enterprise skills to identify and report to appropriate personnel any faults in tools, equipment or materials; - literacy skills to: complete workplace documentation, including recording written plans and completing other relevant workplace documentation, such as work backups; - read and interpret: documentation from a variety of sources; plans and specifications; regulations and relevant Australian standards; - numeracy skills to apply measurements and calculations; - planning and organising skills to: organise and sequence tasks with others, and; plan and set out work; - teamwork skills to work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities; - technical skills to interpret plans and specifications of a multi-unit development to plan, size and document layout of required sanitary drainage system, and; - access and understand site-specific instructions in a variety of media; use mobile communication technology.Students will also be expected to demonstrate the following knowledge: - Australian standards applicable to sanitary drainage systems; - characteristics and application of different pipe systems, including their fittings and fixture supports and fixing and joining techniques; - computer use, including computer-aided design software for plumbing and construction systems; - design concepts and performance measures for sanitary drainage systems; - handling of hazardous waste; - how to find and access necessary specifications and related information; - infectious diseases relevant to working with plumbing systems; - job safety analysis (JSA) and safe work method statements (SWMS); - principles of drainage; - process of planning, sizing and documenting layout of sanitary drainage systems; - process of treating trade waste to acceptable levels for discharge; - properties and characteristics of sewage, including temperature implications, trade waste requirements and discharge levels; - relevant statutory requirements related to planning, sizing and documenting sanitary drainage systems; - SI system of measurements, and; - workplace and equipment safety requirements.

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

VU takes care to ensure the accuracy of this unit information, but reserves the right to change or withdraw courses offered at any time. Please check that unit information is current with the Student Contact Centre.