How dual flush toilet work? | ehow, A dual flush toilet uses the power of water, rather than the combined power of water and air like standard toilets, to wash waste away. this allows the dual flush to. How dual flush system toilet works | ehow, How a dual flush system toilet works. rather than having a single lever or button as you'd find on standard toilets, a dual-flush toilet will usually have a system. Howstuffworks " dual flush toilets work ", Dual flush toilets handle solid and liquid waste differently from the standard toilet. find out how dual flush toilets get rid of waste..