How adjust dual-flush toilet | ehow uk, How to adjust a dual-flush toilet. dual-flush toilets save money on your water bill. they have two separate buttons for flushing the toilet, depending upon the waste. How install dual flush toilet | ehow, You may also like. how to install a toto dual flush toilet. increasingly, household appliances are being required to perform more efficiently, and with less impact to. 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..