THE CONCEPT OF DUAL FLUSH: The modern-day double flush toilets come with two different types of levers or buttons. One is larger, while the other is smaller and each button is connected to its own ...

Trendy eco dual-flush toilets are wasting 400 million litres of water a day in the UK Credit: Getty Images - Getty. The problem is blamed on the cistern mechanism which is prone to leak, sending a ...

If you're unsure about which button does what, most dual-flush toilets make it easy to figure out. Usually, you'll notice that one button is smaller or marked with a symbol like a half-circle or a ...