I have two 1.0 tog grobags that DS uses that a friend lent me. After washing one I realised I'd missed a stain (I think its fresh peach juice so the stain is a pink colour) and it seems to be 'washed in' now. I washed it again after spraying it with White King Stain remover but its still there. I can't return them to her in this condition, but cant really afford to buy a new grobag either, any hints as to how to get it out?