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    I just thought of a way to save 5 million litres of water every day in Australia!

    5 million litres per day? This equals 1.8 billion litres per year. Which equals 1.8 million cubic metres per year According to this page, total consumptive water use in Australia in 2004/04 was 18.8 Billion cubic metres. This equates to 18,800 million cubic metres per year. So the...
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