Rainwater tanks in multi-unit buildings: A case study for three Australian cities

Erhan Eroksuz and Ataur Rahman

Resources, Conservation & Recycling, 2010, vol. 54, issue 12, 1449-1452

Abstract: Rainwater tanks have become popular in large Australian cities due to water shortage and greater public awareness towards sustainable urban development. Rainwater harvesting in multi-unit buildings in Australia is less common. This paper investigates the water savings potential of rainwater tanks fitted in multi-unit residential buildings in three cities of Australia: Sydney, Newcastle and Wollongong. It is found that for multi-unit buildings, a larger tank size is more appropriate to maximise water savings. It is also found that rainwater tank of appropriate size in a multi-unit building can provide significant mains water savings even in dry years. A prediction equation is developed which can be used to estimate average annual water savings from having a rainwater tank in a multi-unit building in these three Australian cities.

Keywords: Rainwater harvesting system; Rainwater collection; Potable water savings; Multi-unit building (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:54:y:2010:i:12:p:1449-1452

DOI: 10.1016/j.resconrec.2010.06.010

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