When we moved my dogs kept using my bedroom carpet as a puppy pad. I finally got them trained for the most part but the carpet was ruined. I saw this product and read all the great reviews and decided to give it a try. I used it straight in my shampooer without sucking it all up. The smell is gone and did not come back. I had a cat that had peed on the couch and I already tried a few other products that did not work but this did. I highly recommend this product.