Have 3 dogs! When we brought a new one home, one of the dogs started marking some areas. This product is amazing, so want to share it with a friend. We have a carpet shampooer, because of three dogs, but you really need to get the odor out before cleaning with a shampoo carpet cleaner or the odor will come back in the summer when it gets humid. We are a very clean household and the last thing I want is a urine smell. Thanks for such an amazing product!