what is the difference between a single flush toilet and a dual flush
Dual flush toilets have two flushing modes â the half flush and the full flush. The half flush is designed for urine while the full flush is designed for faeces. A dual flush toilet can use as little as 3 litres of water for a half flush and 6 litres for a full flush, and they can be even more efficient than that.
Single-lever flush systems are easier to operate since every flush is rated at 1.28 gpf. However, dual-lever flushing offers two choices, a half flush for liquids and a full 1.6 gallons for solids. This allows full flushing control, but dual-flush toilets also average about 1.28 gpf.