Interested in what's in your tap water and how it gets there?
You'll also find details below about what affects the hardness of the water in your home, the presence of things like calcium and fluoride, and the processes that are in place to make sure your drinking water is kept safe and clean.
Although it's our job to get the water from its natural source and safely into your home, there are things you can do to ensure that the water you drink, cook with and wash in is of the very best quality. This easy-to-read guide from the Water Regulations Advisory Scheme (PDF 5,574 KB opens in a new window) will help, too - it tells you how you can have control over the condition of your own tap water.