OMG do not try the urine light unless you want to be totally grossed out. It shows not only pet stains but spilled drinks as well. I looked once when Buster was a puppy and although my carpets were fairly new as was Buster my carpet looked like a painting by Jackson Pollock. I ended up getting a carpet cleaner and a spot cleaner. I also spray my carpet with the enzyme cleaner before I clean. They do have cleaning solution to help reduce pet odors. I always rinse the carpet twice after a wash as I worry about the chemicals with Buster laying on the carpet and licking his paws.
Pet Stains On Carpets | Carpet Color Solutions