Page 1 of 5 Title Manage water quality in a basic public pool Level 4 Credits 10 Purpose This unit standard is intended for people working in a basic public pool and who are responsible for the quality of the water. People credited with this unit standard are able to: describe pool water treatment and related equipment; operate pool equipment for maintaining water quality; test pool water quality and interpret the results; carry out corrective procedures to ensure pool water quality; handle and store pool water treatment chemicals; and explain planned preventative maintenance in relation to pool water treatment equipment, in a basic public pool. Classification Recreation and Sport > Recreation and Sport - Aquatics Available grade Achieved Explanatory notes 1 The following legislation and New Zealand Standards are relevant to this unit standard: Health and Safety in Employment Act 1992; NZS 4441:2008 Swimming pool design Standard; NZS 5826:2010 Pool water quality, available from http://www.standards.co.nz. 2 Underpinning skills and knowledge useful for this unit standard could be evidenced by the holding of Unit 20046, Monitor pool water quality and store pool water treatment chemicals, and Unit 25982, Demonstrate knowledge of microbiology and perform calculations relevant to water quality in a public pool. 3 Definitions Public pool is as defined in NZS 5826:2010 as the pool or pools, their fixtures and surrounds, shower and changing areas, fun equipment, play areas, and attached facilities where they exist. A basic public pool tends to have the following characteristics: moderate to high bather loads; basic filtration; no or low level of automation; and use of chlorine disinfection. Organisational requirements refer to policy and procedures of the public pool and include compliance with any applicable legislation, standards, and codes.
Page 2 of 5 Outcomes and evidence requirements Outcome 1 Describe pool water treatment and related equipment in a basic public pool. 1.1 Filtration systems are described in terms of purpose, operation, and maintenance sand, vacuum DE (diatomaceous earth), pressure DE. 1.2 Recirculation systems are described in terms of purpose, operation, and maintenance balance tank, pump, inlet and outlet structures. 1.3 Relationships between pool volume, turnover rate, and bather load are described in relation to water treatment equipment. for a regular shaped pool, for an irregular shaped pool, heated pool, unheated pool. 1.4 Chemical dosing is described in terms of purpose and maintenance chlorine, ph, cyanuric acid, calcium hardness, coagulant, chlorine dioxide. Outcome 2 Operate pool equipment for maintaining pool water quality in a basic public pool. 2.1 Filtration is monitored and operated in accordance with organisational 2.2 Recirculation system is monitored, operated, and maintained in accordance with organisational 2.3 Chemical dosing systems are operated and maintained in accordance with organisational chlorine, ph, cyanuric acid, calcium hardness, coagulant.
Page 3 of 5 Outcome 3 Test pool water quality and interpret the results in a basic public pool. 3.1 Water quality testing is carried out in accordance with organisational requirements and NZS 5826:2010. one of swimming pool, leisure pool, spa pool; tests for ph, FAC (free available chlorine), TAC (total available chlorine), CAC (combined available chlorine), cyanuric acid, TDS (total dissolved solids), calcium hardness, alkalinity; test methods may include but are not limited to titration, photometer, colourometric measurement, calculation. 3.2 Results of water quality testing are recorded in accordance with organisational requirements or NZS 5826:2010. ph, FAC, TAC, CAC, cyanuric acid, TDS, calcium hardness, alkalinity. 3.3 Interpretation of recorded water quality test results is in accordance with NZS 5826:2010. Outcome 4 Carry out corrective procedures to ensure pool water quality in a basic public pool. 4.1 Chemical corrective procedures are carried out in accordance with organisational ph, FAC, CAC, cyanuric acid, TDS, calcium hardness, alkalinity, super chlorination. 4.2 Calculations are performed in relation to non-automated chemical corrective procedures. may include but is not limited to CAC, cyanuric acid, calcium hardness, alkalinity, super chlorination. 4.3 Procedures to deal with blood, vomit, and faecal incidents are followed and incidents are reported in accordance with organisational
Page 4 of 5 Outcome 5 Handle and store pool water treatment chemicals in a basic public pool. 5.1 Site chemicals for pool water treatment are handled and stored in accordance with organisational requirements, NZS 5826:2010 and material safety data sheets. oxidants and corrosives including chlorine gas; may include flammables. Outcome 6 Explain planned preventative maintenance in relation to pool water treatment equipment in a basic public pool. 6.1 Planned preventative maintenance of pool water treatment equipment is explained in terms of ongoing management of pool water quality. pumps, filters, chemical dosing systems. Replacement information This unit standard replaced unit standard 18339. Planned review date 31 December 2013 Status information and last date for assessment for superseded versions Process Version Date Last Date for Assessment Registration 1 12 February 2010 31 December 2011 Revision 2 18 February 2011 N/A Accreditation and Moderation Action Plan (AMAP) reference 0099 This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Please note Providers must be granted consent to assess against standards (accredited) by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Page 5 of 5 Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards. Consent requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource Comments on this unit standard Please contact info@skillsactive.org.nz if you wish to suggest changes to the content of this unit standard.