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Australian Inventions & Products

Duel Flush toilet

The duel flush invention was good to help break down the cost of water used.


Duel flush toilet

Duel Flush Toilet
Wheat Stripper at work in ealry Australia
Duel flush toilet

In 1980 the Caroma company received a government grant to develop a duel flush toilet cistern. the new Duo set cistern had 2 buttons. Users could choose a big flush of 11 litres or a smaller flush of 5 litres and it worked well as the old larger cisterns. The toilet was tested in south Australian towns. The of residents all got a new free cistern and they saved 37000 litres of water per year.

In 1993 Caroma developed the 6/3 cistern which used even less water 6 litres for the big flush and 3 litres for the small flush. Caroma also redesigned their toilet bowls to make them work better with less water.

Caroma duel-flush toilets are now sold in more than 30 countries.


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