Modern toilets frequently come equipped with dual flush buttons, but many people may not be aware of their purpose beyond simply flushing.
These buttons are designed to promote water conservation: the larger button typically uses about 6 to 9 liters of water for solid waste, while the smaller button uses 3 to 4.5 liters for liquid waste.
By choosing the appropriate button, households can save up to 20,000 liters of water each year compared to traditional single-flush toilets.
Although the initial installation cost may be higher, the long-term benefits include both environmental advantages and reduced water bills. The concept was introduced by Victor Papanek in 1976 and was first implemented in Australia in 1980.