Did a load of washing today and it came out smelling horrible, with limescale deposits (I assume) on the darker clothes. I've run out of my usual Dr Beckman stuff to deep clean the washing machine and don't want to visit the shops just to get that one item. Can I use my toilet limescale remover/bleach in the washing machine instead or will I kill it? I don't have any baking soda (have bicarb soda which is two years out of date) or lemon or vinegar to try cleaning the machine in an eco-friendly way either.