High School Water Conservation Booklet Name: - Bundaberg ...

Single flush cisterns however, should be replaced with dual flush cisterns wheneverpossible to be cost effective.Cisterns are constructed from a variety of materials. When retrofitting single flushcisterns with dual flush cisterns in your school select materials which suit your operatingenvironment.Pans should be selected with a throat designed to be compatible with the cistern flow.HandbasinsHandbasins are mostly located in the toilet blocks of the school and their taps are capableof flow rates up to 20l per minute. These rates are completely unnecessary for handwashing and can be reduced without any loss of effectiveness by installing flow controllersin the taps.External hose cocksExternal hose cocks (outside taps) at schools can be a source of significant water waste,particularly if the hose cocks are prone to vandalism or unauthorised use.Vandal proofing the handles of hose cocks prevents indiscriminate or uncontrolled use.The simplest means of vandal proofing hose cocks is to fit handles that require a specialtool to operate the tap. (asylum cocks) Ground staff and janitors should then be the onlypeople authorised to carry such tools.ShowersSubstantial water and financial savings are possible by reducing the flow rate of showerswithin schools.Retrofitting showers by installing water-saving shower roses or flow controllers in thewater supply will reduce flow rates. Use shower roses with flow rates of 9 litres/minute orless.SinksThe success rate of reducing water consumption by modifying sinks depends largely on howthe sinks are used. While the flow rate at sink taps can be reduced using flow controllers,this has little impact when the sinks have to be filled to wash dishes.IrrigationIrrigation commonly consumes the most water in schools. Irrigation typically takes twoforms, major irrigation of ovals, fields and large grassed areas, and minor irrigation ofgardens, vegetated plots, and minor grassed areas.45