In the uk many parts of the country are in hard water areas the white deposits that build up on kettle elements are perhaps the most instantly recognisable sign of limescale deposits but they can also be found on taps showerheads and even in the grout between tiles and then there are limescale deposits that cant be seen such as in coffee machines washing machines steam irons and the heating elements of babies sterilisers it is recommended that you descale such appliances regularly t