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Rainwater Harvesting System for a Commercial Building in Guelph

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Title: Rainwater Harvesting System for a Commercial Building in Guelph
Author: Selby, Justin; McReynolds, Beth; Marek, Nick
Abstract: Rainwater harvesting is an effective way to reduce the cost associated with water drawn from a municipal supply by replacing municipal water with collected rainwater. An optimum rainwater harvesting system was designed for a 220,000 ft2 manufacturing plant in Guelph for this purpose. The system was chosen using sensitivity analysis to find the shortest return period, which was determined to be 6.5 years. This system collects rainwater by individually tying into the preexisting roof downspouts from 25% of the roof, piping the collected water to two 5,000 gallon cisterns for storage, and then pumping the water through a treatment unit. The total cost associated with the system is $22,000.
Date: 2009-03-16
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