Try a can of full on sugary Coca-Cola. Sounds odd but it does remove blood and egg from concrete so I am hoping urine would be a breeze for it. Leave it on the stain a while then rinse off with clean water. Please let us know how you get on, I will cross my fingers for you!
I am sorry to say that I have tried everything. I do mean just about everything and nothing has worked. I have even poured undiluted pine sol on my breezeway cement and nothing has worked. I haven't tried any of these advertised products at the side of the page. Good luck. I will be watching for a solution too!
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