There are over 15 million toilets in SA homes and at 15 litres per flush this equates to flushing an estimated 2,25 billion litres of water every day! About 30% of total water used in the household is through toilet flushing. | Dual flush toilets have a split flush button which gives the user the choice of how much water to use. Dual flush toilets typically use 4-6 litres of water opposed to the old style flush systems which use a massive 15 litres per flush. |