Water consumption by Households was 2,108 GL in 2004-05, accounting for 11% of water consumption in Australia.
SANITARY FIXTURES

Sanitary fixtures in public, commercial or industrial buildings include toilets, urinals, basin taps, and showerheads. In Sydney, approximately 37% of total commercial building water use is used for domestic/bathroom applications in commercial or public office buildings (DEH, 2006a).

This can be much higher, depending on the building type.While part of this will be for water used in kitchens, the majority is likely to be for sanitary fixtures.

Types of sanitary fixtures -Toilet (Source: GHD, 2007); Urinal (Source: ACT Office of Sustainabilty, 2007); Sink (Source: GHD, 2007).
It takes approximately 15 minutes to deliver just one liter of water to the soil with drip irrigation, compared to five seconds when hand watering?

Most plants will flourish on a 25 - 30 min dripper watering twice a week.

Installing a Moisture sensor can save up to 50% of your required irrigation water needs.
Rain Water FAQ
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Government Water Rebates
How much rain water can I collect?