CPCPSN4011B
Design and size sanitary plumbing systems

This unit of competency specifies the outcomes required to design, size and document the layout of sanitary plumbing systems for multi-floor buildings.

Application

Site location for application of the plans will be residential or commercial, and may be a new work site or an existing structure being renovated, extended, restored or maintained.


Prerequisites

Nil


Elements and Performance Criteria

1

Prepare for planning.

1.1

Nature and scope of planning task are identified and confirmed.

1.2

Work health and safety (WHS) andenvironmental requirements associated with planning, sizing and documenting the layout of sanitary pipework and fixtures are adhered to throughout the work.

1.3

Work is organised and sequenced in conjunction with others involved in or affected by the work and statutory and regulatory authorities’ requirements.

1.4

Tools and equipmentrequired for planning, sizing and documenting the layout of sanitary pipework and fixtures, including personal protective equipment, are selected and checked for serviceability.

1.5

Work area in which planning process is to be conducted is prepared.

2

Identify system requirements.

2.1

Informationand specifications for required system work are obtained and confirmed, if necessary by site inspection.

2.2

Regulations and Australian standards relevant to the work are consulted and applied to all aspects of the work.

2.3

Quantity, location and type of fixtures are determined from design drawings, plans and elevations.

2.4

Fixture unit loading is determined according to relevant Australian standards and regulatory authorities' requirements.

2.5

System is sized according to relevant Australian standards, and regulatory authorities' and workplace requirements.

3

Plan system layout.

3.1

Layout of sanitary pipework and fixtures is planned according to building plans, relevant Australian standards and workplace procedures.

3.2

Materialsrequired are specified and optimised according to relevant Australian standards from the proposed design.

3.3

Plans are recorded according to regulatory authorities' and workplace requirements.

3.4

Sustainability principles and concepts are observed when preparing for and undertaking work process.

4

Restore work area.

4.1

Work area is restored according to workplace procedures.

4.2

Tools and equipment used in the process are refurbished and left according to workplace procedures.

4.3

Documentation, including work backup, is completed according to workplace requirements.

Required Skills

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

literacy skills to:

complete workplace documentation

record plans

read and interpret:

documentation from a variety of sources

regulations, relevant Australian standards, plans, specifications and drawings

numeracy skills to apply measurements and calculations

planning and organising skills to:

plan and sequence tasks with others

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:

document the layout of sanitary pipework and fixtures

identify and accurately report to appropriate personnel any faults in tools, equipment or materials

technology skills to:

access and understand site-specific instructions in a variety of media

use mobile communication technology

Required knowledge

accessing relevant information sources for the work activity

Australian standards applicable to the system

characteristics and the application of different pipe systems, including their fittings and fixture supports, and fixing and joining techniques

computers and computer-aided design software

handling of hazardous waste

infectious diseases

job safety analysis (JSA) and safe work method statements (SWMS)

pipe materials and sanitary fixtures

principles of drainage

principles of sanitary plumbing

process of planning, sizing and documenting the layout of sanitary pipework and fixtures

relevant statutory requirements related to planning, sizing and documenting the layout of sanitary plumbing systems

SI system of measurements

workplace and equipment safety requirements

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person who demonstrates competency in this unit must be able to provide evidence of:

locating, interpreting and applying relevant information, Australian standards and specifications to planning, sizing and documenting the layout of sanitary pipework and fixtures for a multi-floor building

applying safety requirements throughout the work sequence, including electrical safety requirements and the use of personal protective clothing and equipment

as a minimum, the ability to design, size and document the layout details for a commercial (Class 6) and residential building; using two approved sanitary plumbing systems to a minimum of six floors, inclusive of a basement, to include fixtures on each floor level (excluding the basement), ensuring:

application of sustainability principles and concepts

correct identification of details of the plan

correct selection and use of appropriate processes, tools and equipment

completion of all work to specification

compliance with regulations, relevant Australian standards and organisational quality procedures and processes

communicating and working effectively and safely with others.

Context of and specific resources for assessment

This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.

Assessment of essential underpinning knowledge will usually be conducted in an off-site context.

Assessment is to comply with relevant regulatory or Australian standards’ requirements.

Resource implications for assessment include:

an induction procedure and requirement

realistic tasks or simulated tasks covering the minimum task requirements

relevant specifications and work instructions

tools and equipment appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe working practices and addressing hazards and emergencies

material safety data sheets

research resources, including industry-related systems information.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package

include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

reinforce the integration of employability skills with workplace tasks and job roles

confirm that competency is verified and able to be transferred to other circumstances and environments.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.

Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Work health and safety is to be according to commonwealth, state and territory legislation and regulations and may include:

handling of materials

hazard control

personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including recognising and preventing hazards associated with:

electricity

hazardous materials and substances

other machines

surrounding structure and facilities

trip hazards

underground services

use of tools and equipment

work site visitors and the public

working at heights

working in confined spaces

working in proximity to others

use of firefighting equipment

use of first aid equipment

workplace environment and safety.

Environmental requirements cover water quality management and may include:

clean-up protection

stormwater protection

waste management.

Statutory and regulatory authorities include:

commonwealth, state or territory, and local authorities administering applicable Acts, regulations and codes of practice.

Tools and equipment may include:

drawing instruments

measuring equipment

tools and equipment, which may include computers running appropriate computer-aided design software.

Fixturesmay include:

ablution trough

bain marie

basin

bath

bidet

domestic and commercial clothes washing machine

domestic and commercial dish washing machine

glass washing machine

laundry trough

shower

sink

slop hopper

urinal

WC.

Information may include:

charts and hand drawings

instructions issued by authorised organisational or external personnel

job drawings manufacturer specifications and instructions

material safety data sheets (MSDS)

memos

organisation work specifications and requirements

plans and sketches

regulatory and legislative requirements, particularly those pertaining to:

building codes

WHS and environmental requirements

plumbing regulations

relevant Australian standards, including AS/NZS3500 National plumbing and drainage: Part 2 Sanitary plumbing and drainage

safe work procedures relating to planning, sizing and documenting the layout of sanitary pipework and fixtures

signage

verbal, written and graphical instructions

work bulletins

work schedules, plans and specifications.

System may include:

approved sanitary plumbing systems

discharge pipes

elevated pipework

soil and waste fixtures.

Materials may include:

building plans and specifications, including drainage plans.

Sustainability principles and concepts:

cover the current and future social, economic and environmental use of resources

may include:

efficient design principles that have minimal environmental impact

efficient use of material in the design, including recycling of material

efficient energy and water use

disposing of waste material to ensure minimal environmental impact.


Sectors

Functional area

Unit sector

Plumbing and services


Employability Skills

This unit contains employability skills.


Licensing Information

In some jurisdictions, this unit of competency may form part of accreditation, licensing, legislative, regulatory or certification requirements.