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

Erhan Eroksuz, Ataur Rahman

    Research output: Contribution to journalArticlepeer-review

    129 Citations (Scopus)

    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.
    Original languageEnglish
    Pages (from-to)1449-1452
    Number of pages4
    JournalResources, Conservation and Recycling
    Volume54
    Issue number12
    DOIs
    Publication statusPublished - 2010

    Keywords

    • rainwater
    • water harvesting

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