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| 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. |
Need for assessing water use may include assessment for: | determining water profileopportunities for reducing water use and improving water efficiencylegislative, regulatory and compliance purposesproviding building design advice. |
Residential building refers to: | any building categorised as Class 1, 2, 4 and 10a of the Building Code of Australia or in accordance with jurisdictional requirements. |
Client may include: | buildercommunity organisationconstruction managergovernment agencyhouse ownerlandlordproperty developerproperty managerreal estate agenttenantwater authority. |
Effective communication strategies may include: | active listeningbeing non-judgementalexploring problems expressing an individual perspective providing sufficient time for questions and responsesproviding summarising and reflective responses in conflict situationsusing appropriate words, behaviour and postureusing clarifying, summarising questions using clear and concise languageusing culturally appropriate communicationusing plain Englishusing verbal and non-verbal communication. |
Commonwealth, state or territory, and local government legislation and regulations, and industry ethical and conduct standards may include: | environment protectionethical behaviourfair trading and consumer protection:confidentialityconflict of interestduty of carenon-discriminatory practicesprivacyresidential tenanciesOHSwater and water managementwater use assessment:accreditationassessment procedurescertificationdocumentation. |
Issues may include: | basis for need to conduct water use assessment information required by assessor from clientinformation that assessor is required to documentobjectives of assessment. |
Hazards may include: | appliances:electrocutionfaultsbiological waste:black watergreywaterconfined spaceselectricityharassment, bullying and/or violence involving co-workers or customershazardous substances:allergensasbestoschemicalsfibresfumesinsulationheat:burnsscaldsmanual handling:carryingliftingpullingpushingmachinery, including powered and non-powered equipmentskin penetrating injuries:knivessharpssyringeswork environment:accessanimalsdustfloor surfaceslightingnoisepollentemperaturetrips and fallsworking aloneworking at heightsventilation. |
Assessment documentation may include: | building detailsbuilding plans and specificationschecklistsclient detailscompany promotional materialscontact detailsexisting water billsphotographic evidencerisk assessmentsite detailswater meter readings. |
Tools, equipment and other requirements may include: | bucketcalculatorclipboardclockcompassdigital cameraflow meterladderpersonal protective equipment (PPE):dust maskseye protectionheadwearglovesoverallssafety shoes and work bootstape measurethermometertimertorch. |
Information that should be obtained prior to assessment may include: | appliances:agecapacitynumbertypehousehold members:numberagewater accounts:billing historyplanstariffswater reduction, reuse and recycling strategies currently in place:greywater collection and usewater tanksother water conservation strategies. |
Details of assessment may include: | address of residenceassessor name and contact detailscost of assessmentdate and time of assessmentduration of assessment. |
Information may include: | age, type and operation of appliancesbehaviour and preferences of household members that impact on water usewater costswater usewater services:internal water servicesexternal water services. |
Information on household water use and costs may be gathered through: | analysis of water meter readings:conventional meterssmart metersanalysis of accounts to show daily, seasonal and trend data on water use and costanalysis of costs of different water plans and tariff structures. |
Information on internal water services may include: | characteristics of internal water services:ageaverage daily usecapacityconditionflow rategreywater collection and useleaks and dripsmaintenance costs of systemnumbersuitability for size of householdwater efficiency ratingwater saving featureswater usenumber and type of internal water services:bathsclothes washing machinescombination washer/dryer machinesdishwashershot water circulatorsshowersspastap equipmenttoilets. |
Information on external water services may include: | characteristics of external water services:ageaverage daily useconditionflow rate greywater collection and useleaks and dripsmaintenance costs of systemnumberpipeplacementsuitability for size of householdwater saving featureswater usenumber and type of external water services:domestic irrigation and reticulation systemsevaporative coolersgreywater systemsspasswimming poolstaps and hoses. |
Information onbehaviour and preferences of household members that impact on water use may relate to: | attitudes of other household members not participating in the assessment processattitudes to reducing, reusing and recycling waterresident perception of water consumptiongardening practicesinefficient water use:car washingwashing of external surfacesmedical conditions of householdsetting, programming and using timers and other controlsshowering timesuse of appliancesuse of evaporative cooling systemsuse of hot wateruse of pools and spas. |
Data collection tools may include: | checklists and formsgraphsquestionnairesself-assessment formssoftware programswater use calculators. |
Characteristics of household water use, costs and emissions may include: | comparison of water use and costs with similar householdscomponents of internal and external water usedaily water use and costsoccupant behaviourseasonal variation in water use and coststotal water consumption and costtrends in water consumption and costs over time. |
Options for improving efficiency of water use and reducing costs and emissions may include: | behaviour and preferences of household members that impact on water use:efficient use of appliancesknowledge of leak detection techniquesknowledge of WELS ratingslimit inefficient water use:car washingwashing of external surfacesreduce showering timeuse of appliancesuse of hot wateruse of settings, programming, timers and other controls on appliances and irrigation systemsexternal water services:domestic irrigation and reticulation systems:check for drips and leakscheck for correct placement of systemcheck timing and duration of useundertake regular maintenanceuse gardening practices that reduce water usageuse recycled wateruse timers and control devicesuse substrata (under the mulch) drip irrigationevaporative coolers:check for drips and leakscheck size of appliances relative to household requirements, as appropriatemaintain appliancesreduce dumping/bleed-off ratesreduce water supply pressurereset thermostats and timers, where applicableuse discharge water on lawns and grass areasspas and spa pools:check for drips and leakskeep spa or spa pool water in correct condition to avoid emptying polluted waternever over-fill a spa pooluse backwash minimisation systemuse spa pool coverswimming pools:check for drips and leaksensure pool has suitable overhanging pavers or decking to keep splash-out to a minimum install shade sails and wind covers to minimise evaporation keep pool water in correct condition to avoid emptying polluted waternever over-fill a pooluse backwash minimisation systemuse pool coverwater tank to collect rainfall to top up pool as neededtaps and hoses:check for drips and leaksinstall pressure valvesfit flow restrictorsinternal water services:appliances:check for drips and leakscheck size of appliances relative to household requirements, as appropriatecheck WELS ratingsconsider necessity of having multiple appliancesmaintain appliancesreplace with appliances that have different cyclesreplace with water efficient appliancesset timers, where applicableuse appropriate program settingsuse in compliance with manufacturer instructionsuse with full loadsshowers, check for:drips and leaksflow cut-off valvesflow restrictorslow-flow shower headsshower timerssmart metering of shower useWELS ratingtap equipment, check for:drips and leaksflow regulatorstap aeratorsvalvesWELS ratingtoilets, check for:drips and leaksdual and reduced flush systemswater saving and displacement devices for single flush toiletsWELS ratingwater efficient gardening practices:drought tolerant plantingmulchingreplacing lawnslawn alternativescomposts and manures on soilrainwater and greywaterwater efficient irrigation systemswater efficient watering practicesweeding. |
Evaluation takes into account: | availability of rebates and other assistance programsbehaviour and preferences of householderscostownership of buildingpracticalitytype of building. |
Sources of technical advice on incorporating rainwater harvesting, greywater technologies and other water conservation measures in residential buildings may include: | architectsbuilding designerscolleaguesconsultantsgardenersgovernment agenciesprofessional associationsresearch bodiessupervisorssuppliers of domestic greywater, water harvesting and water conservation technologies water utilities. |
Advantages and disadvantages of rainwater harvesting, greywater technologies and other water conservation measures may include: | advantages:availability of financial incentiveshigher resale value isolation for building owners from future water price increases pre-empt future legislative restrictions or penalties, which may force expensive retrofits to inefficient buildingsreduce total net monthly cost of living value of building relative to similar conventional building should water costs increasedisadvantages:effort required to understand, apply and qualify for rebatesinitial cost overcapitalising on older buildings. |
Evaluations are based on: | climatecostlocationphysical features and ownership of buildingpracticalitytypeuser behaviour and preferences. |