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DuoSet dual flush toilet cistern, 1990
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Object statement
Toilet cistern, dual flush, DuoSet, clear plastic, Caroma Industries Limited, Adelaide, 1990
Caroma's DuoSet toilet is a two button flush system allowing the user to select between a 9 litre and a 4.5 litre flush. The clear acrylic cistern is a specially made demonstration model to show the internal mechanism.

The Caroma dual flush toilet was developed in response to Australia's limited water resources. Caroma created a research and development project to reduce water use which was funded by a Commonwealth Government Grant. The research and development project led to considerable redesign of the traditional cistern and bowl and created the dual flush system.

The development and use of the dual flush toilet reduced national water consumption for toilet use and addressed the significant issue and cost of wasting clean water. The introduction of the 9/4.5 litre flush system in 1980 reduced water use from an average 55 litres per person per day to 27 litres per person per day.

Dual Flush toilets were made mandatory around Australia in all new buildings. Caroma redesigned the cistern and pan in 1994 to produce an even smaller 6/3 litre product which reduced water use to 18 litres per person per day.
Finalist in the 1982 Prince Philip Prize (Award) for Australian Design. Australian Design Award 1982

 This text content licensed under CC BY-NC.

Toilet cistern, dual flush, DuoSet, clear plastic, Caroma Industries Limited, Adelaide, 1990
Production date
460 mm
475 mm
150 mm

 This text content licensed under CC BY-SA.
Acquisition credit line
Gift of Caroma Industries Pty Ltd, 1992
+ Sanitation
+ Water conservation
+ Australian product design
+ Australian Design Award
Short persistent URL
Concise link back to this object: https://ma.as/126700
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{{cite web |url=https://ma.as/126700 |title=DuoSet dual flush toilet cistern |author=Powerhouse Museum |accessdate=27 February 2017 |publisher=Powerhouse Museum, Australia}}

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Object viewed times. Parent IRN: 2120. Master IRN: 2120 Img: 146207 Flv: H:2319px W:3461px SMO:0 RIGHTS:.