Water saving technologies

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To support Beacon’s water demand management research, we have also investigated aspects of water saving technologies.

This work included:

  • A review of existing technologies in New Zealand
  • Policy and regulation to support rainwater tanks
  • A product design criteria methodology to assess water saving products and systems to identify potential commercial opportunities
  • A review of health, infrastructure and maintenance barriers to rainwater tanks and greywater systems.

  • 28-Feb-2010 (Report WA7060/6)

    Barriers to Water Demand Management: Health, Infrastructure and Maintenance (PDF 2MB)

    David Kettle

    This report documents the research findings from a literature review focussed on aspects related to rainwater tanks and greywater systems as part of the water supply demand management 'tool box'.  It discusses health risks, maintenance/ownership, centralised/decentralised, barriers to adoption and possible solutions. 


  • 30-Jun-2009 (Report WA7090/3)

    Integrated Water Management Design Criteria Report (PDF 354KB)

    David Kettle

    This project developed a product design criteria methodology to assess water saving products and systems to identify potential commercial opportunities.  The best overall 'score' came from a combined 'system', comprising a low flow shower head, a water efficient washing machine, a 9,000 litre rain water tank and greywater reuse.Two potential commercial opportunities were identified; the installation of a relatively small 200 litre rainwater tank attached to the side of the house to supply toilet water only; and a 'modular' tank system where small storage blocks of 200 to 300 litres each could be connected up in irregular shapes to fit under decks, etc.


  • 03-Jan-2007 (Report PR205/1)

    Making Policy and Regulations Rain Tank Friendly (PDF 234KB)

    Maggie Lawton, Damon Birchfield, David Kettle

    This investigation reviewed the legal and policy pathways for mandating to include rain tanks for water conservation in new homes in the Auckland Region. It recommends the steps that would be most effective in making policy and regulation rain tank friendly.


  • 08-Jan-2006 (Report TE160/1)

    Water Efficiencies: Report on Existing Technologies/Expertise in New Zealand (PDF 116KB)

    Sarah Heine

    This report identifies three key areas for water efficiency: front loading washing machines, water efficient toilets, and reduced garden water consumption. It suggests that, rather than investigate new technologies, the consumer needs to be encouraged to make use of existing technologies and information via education and promotion.