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St. Anthony Splash Pad Retrofit Feasibility Study <br />January 24, 2017 <br />Page 3 <br /> <br />K:\02170-430\Admin\Docs\MEMO_StA_SplashPadfinal.docx <br />Option 3 – Irrigation <br />Both splash pads are located in parks where irrigation systems are in use. The discharge from the splash <br />pad has the potential to eliminate potable water use for irrigation. A new underground tank would need to <br />be installed at Emerald Park to capture splash pad water for later irrigation use (Illustration A). <br /> <br /> <br />Illustration A: Sketch of a flow-through splash pad with underground storage and irrigation. <br />Benefits <br /> Approximately 10-30% of the water used in the splash pad is available for irrigation <br /> Eliminate potable water use for irrigation during an average year <br /> Maintain user experience <br /> <br />Drawbacks <br /> Water consumption rates for the splash pad will not decrease unless coupled with other options. <br />Option 4 – Recirculation <br />Option 4 is a recirculation system that connects the splash pad system drain to an underground storage <br />tank where the water in the storage tank is disinfected and sanitized before it is recirculated back to the <br />splash pad (shown in Illustration B). Recirculating water treatment system uses about 97% less water <br />than the current conditions. However, it requires a pool certified and licensed operator , more daily <br />monitoring and management, and a sanitary connection for backwash water. <br />