Required skills

communication skills to interact in an ethical manner with clients from diverse social economic and cultural backgrounds

decisionmaking and problemsolving skills to identify types and appropriate treatments for water quality problems in swimming pools and spas

literacy skills to read and interpret regulatory and manufacturer guidelines for testing and treating water problems

numeracy skills to perform calculations related to water treatment

research skills to identify and locate information on ways of treating water problems in swimming pools and spas

technology skills to use water sampling and testing equipment

Required knowledge

chemical dosing chemicals procedures and benefits

common swimming pool and spa water problems

algae

bather discomfort

biofilm

chlorination problems

cloudy water

combined chlorine

disinfectant byproducts

discoloured water

faecal accidentincident

foaming

metal fixture corroding

nitrates

phosphates

recreational water illnesses

scale

scum line

stains

water balance problems

commonwealth state or territory and local government legislation and regulations and Australian standards impacting on identifying and treating water problems in swimming pools and spas related to

chemicals

dangerous goods

environment protection

environmental health

work health and safety

waste disposal

contamination response

environmental

faecal

nonfaecal

other

disinfection

chlorine chemistry

disinfectants

principles

health effects of contaminated water in swimming pools and spas

faecal incident response

faecalrelated illnesses

recreational water illnesses

pool water contamination

bacteria

protozoa

virus

testing

for

calcium hardness

chlorine demand

cyanuric acid

disinfection

hydrogen peroxide

metals

nitrates

nonhalogen oxidisers

oxidation

oxidation reduction potential

pH

PHMB

phosphates

salt

temperature

total alkalinity

total dissolved solids

water balance

frequency

methods

colorimetric

electronic

titrimetric

turbidimetric

procedures

sampling

test kit

care

contents

treatments for swimming pool and spa water problems

algaecides

breakpoint chlorination

chemical disinfection

chlorination

corrosion prevention

discoloured water

filtration

oxidation

ozone

shock dosing

spa water treatment

reasons for treatment techniques

treatment techniques change spa water determine and correct pH level sanitise the spa and determine and correct total alkalinity

superchlorination

ultraviolet UV systems

water replacement

water balancing

adjusted alkalinity

balance factors

calcium hardness

pH

principles

saturation index

temperature

testing

total alkalinity

total dissolved salts

water quality parameters

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 by sampling and testing water quality in swimming pools and spas and applying appropriate treatment to respond to identified water quality problems

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

A person should demonstrate the ability to

sample and test or arrange for laboratory testing of water samples from swimming pools and spas

identify and implement treatment processes for identified water problems in swimming pools and spas

comply with safety requirements when sampling testing and treating water in swimming pools and spas

report on outcomes of testing and treating swimming pool and spa water

Context of and specific resources for assessment

Assessment of essential underpinning knowledge may be conducted in an offsite context and is to comply with relevant regulatory and Australian Standards requirements

Resource implications for assessment include

relevant codes standards and government regulations

a technical reference library with current publications on

water quality parameters

water contamination

treatment processes for water problems in swimming pools and spas

Method of assessment

Assessment methods must

satisfy the endorsed Assessment Guidelines of the CPP Property Services Training Package

satisfy the endorsed Assessment Guidelines of the CPP07 Property 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

This unit could be assessed on its own or in combination with other units relevant to the job function

Guidance information for assessment

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

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

Water quality parameters for:

Tests may include:

Water problems may include:

Treatment methods may include:

Preventative measures include:

Appropriate person includes: