Integrated water management design criteria report

David Kettle.

The three-fold purpose of this project was to develop a product design criteria methodology to assess water saving products and systems; identify water products and systems that perform well against the design criteria; and comment on any potential commercial opportunities.

Different products scored differently against different criteria, with the best overall ‘score’ coming 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.