* If you’re replacing an existing tap or have already bought the sink, you’ll need to choose a design that matches the number of pre-drilled tap holes available.

* There's also the water pressure to consider. Most kitchens are supplied with high-pressure water directly from the mains, so most kinds of tap should work well. However, if you have a low-pressure water system (0.1-1 bar) you’ll need to make sure that the model you choose will be suitable before you buy.