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A dual-flush toilet is a water-saving loo designed by eco-conscious Aussies. Unlike American toilets, which fill the bowl after flushing, Aussie loos have a cistern (tank) which fills instead. A half flush uses half the water in the cistern, a full flush uses all the water in the cistern. A half-flush is designed for number 1s, a full-flush for number 2s...or by those who use excessive amounts of loo paper. The capacity of cisterns has decreased over the years, in an attempt to decrease water usage in Aussie homes. Decades of drought (and in many cases, severe water restrictions for the past 5 years) have inspired (and forced) many Aussies to find ways of reducing the amount of water they use, and water-efficient dual-flush toilets are just one tactic employed.
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