Definitely use an enzymatic cleaner. There's a little trick to applying it though, to help it be more effective. I found this page that talks about how: http://homerepairgeek.com/home-floo ... e/remove-pet-urine-off-concrete.html I don't know that you can ever fully get the urine out (it can get down in the concrete and release it's odor forever), so short of removing the concrete altogether, you're left with cleaning and sealing the surface. Gotta luv pets! ... View related article.
