Caroma's integrated toilet, hand basin and tap combination was designed to lower total bathroom water usage. This product features an "innovative dual-flush push button and spout combination that saves water by allowing the same water to be used for two purposes; fresh water is first used for hand washing and then flows into cistern to ultimately flush the toilet This allows you to save the water normally used if a separate basin is used for hand washing"

"Hygiene is assured with the water for hand washing flowing directly from the utilities water supply before it is then used to fill the cistern tank...apart from the filling of the cistern via the spout and basin, the toilet operates normally" [1].

For more details and the full product specification visit: http://www.caroma.com.au/products/data/tsu/profile/main.html