Parents live in a small 1930's (or so) 1st floor flat with good double glazing, central heating etc. In the bathroom they get a huge amount of condensation on the cistern from water level downwards, particularly after having a bath/shower in the room. They resort to having a tray on the floor to catch the water as it drips off. It drives my mother loopy. They have had both plastic and porcelain(?) cisterns with the same problem. Any suggestions on what they can do to limit the condensation? What's different about their house that should cause it?
- dampness/high humidity/extra cold water supply?