I pulled up a rug the other day that has tons of pee stains on the back. Obviously my little darling Sophie was using the bathroom on it during potty training without me knowing. So now I have set in stains and they do smell when you get down close to the rug. The rug is actually carpet that has been bound all the way around. I used a carpet shampooer with Dirt Devil Shampoo and mixed in some Natures Miracle spot cleaner and have cleaned it twice but there are still stains and it still smells. So anyone have anything else I can try?