Dp has left a glass of water for goodness knows how long under the bedside cabinet. Found it today and there are all scale like rings in the glass. I've washed it, but they haven't come out .
Do any helpful or knowledgable (or maybe both ) mnetters out there know the easiest way to get rid of these wretched things? I don't really want to throw the glass away as it's part of a set.
Thank You.