Hello all I use this with great success. http://www.revivalanimal.com/Accel-Disinfectant.htm l don't have a large yard so I'm able to let sit for a few minutes and less irritating to the eyes vs other cleaners. I get from a friend of mines that get it in large quantities at a great price, before this and at times I've used bleach very effective and cheap just hard on my eyes and makes my allergies go crazy.