Welcome to our nuts-and-bolts review of the Insinkerator 4n1 Touch, a boiling water tap system that makes first ... The recommended water supply pressure is between 1.7 and 8.6 bar.

It is possible for your boiling water tap to run out of hot water, but you can reduce the chances of this happening by choosing the tank size that best suits your usage. For example, a 2.4 litre ...