I used this product before having puppies is frustrating i have used everything in the book that they have come out with im not having the messes in the house anymore because my dogs are grown and know better but when i got my Newf back in the summer she was 6 months old and raised in a kennel and she used the house as her bathroom...so i have no carpet in the house now all hardwood i cannot see any product that you just have to spray cause the urine does not just disapear and im sure that it would smell after a dog messes on the carpet it leaks through to the underlay so im wondering how much this product costs? i dont think it could possibly work as well as you say....Welcome to Pet Talk!!!