Use at your own risk. If you don't want poop in your yard I would recommend looking elsewhere. I use to work with him and have seen him poop in his customers yards instead of going to find a gas station or other place to use it. Several times at a customers named Sarah in loop City, a customer named Sarah in Columbus Nebraska, and I forget the customers name but she lives in berwin Nebraska. And he will go out of his way to make your lives as miserable as possible as well as he has done to not only me and my wife but past customers as well when they dare to stand up against him. If I could rate him negative 1000 I would. Use him at your own risk. I would never recommend him in a million years. And he just uses plain water to wash windows so don't let him tell you he uses a special chemical or mixture that kerpe flys away because he don't. Just normal tap water. Test it and find out for yourself if you have doubts.