My washing machine hasn’t been heating the water for around a year but seemed to be washing ok still. Recently stains on the kids clothes haven’t been coming out properly and I’ve noticed the whites are not as white as they once were (kids summer tops purchased may half term so not old clothes.) I have a new machine coming tomorrow is there anyway I can brighten the tops with out ruining them further and I need to try and safe my newish white bedding as well.