A household using dual flush can save up to 20,000 liters of water per year compared to single-flush toilets. Though installation costs more, it is eco-friendly and lowers water bills.
Implementation
The dual flush was proposed by American designer Victor Papanek in 1976 and first implemented in Australia in 1980.
Get Smart
Use the smaller flush for urine and the larger flush for solid waste. Look for size differences or symbols like half circles or raindrops to identify them.