Hard water is water that contains high amounts of minerals like calcium and magnesium. These minerals offer great nutritional value to a healthy diet, but they can be very problematic for your hair and skin.
Additionally, increased lead failures are detected in the UK’s water supply as well as increased iron and chlorine by-products which are all harmful, according to The British Drinking Water Inspectorate. The DWI website also publishes regular reports about failed disinfection practices.