Well, perhaps not quite that serious. But my daughter has just poured wax from a candle down the bathroom sink. And of course it's hardened and blocked it. What do I do? I tried pouring boiling water down the plughole and the sink filled up with hot water and floating bits of wax. Any thoughts? Plumber? Many thanks. I have to go out so if I don't get back to people,it's because I've checked into a hotel room. Only joking.