What is the Quick Tap function and how do I use it?

The Quick Tap function is designed to save water when using hot water. To use it: fully open the hot water tap for at least 3 seconds to ignite the boiler, turn the tap to fully closed, wait up to 30 seconds as the boiler prepares hot water, then open the tap to get hot water. On average, 3.5 litres of water can be saved when using this function. It is available when the boiler is in DHW ECO mode.