I have come across two main complaints regarding outdoor dog urine. By far the most common is the damage caused to grass from the dog urine. The other is the smell from the urine. Usually the smell dissipates and is not a problem in the outdoors. There are exceptions to this. For example I heard of a case where two large dogs were kept in a run almost continually and the urine in the run was never cleaned up. This build up began to smell and when the wind was blowing towards the neighbors it carried the urine smell into there yard and was a considerable nuisance. The damage to grass is the more common outdoor dog urine problem. The best solution is an all natural lawn repair product that is safe for you, your pet and the environment. Designed to prevent and repair lawn damage caused by dog urine.