Originally posted by Twisterdog
Bleach.

Just pour on straight bleach, rub it around evenly with a broom, let it set for a while, then hose it off.

I do this to my boarding kennel dog run, and it works perfectly ... and that's 30 to 40 dogs per day, every day.
I'm not sure if this is safe, this would be safe if all the amonia in the Urine was gone. If ALL the amonia WASN'T gone, it could burn your throat and lungs!! Please be carefull!! My sister did this and almost died because she couldn't breath!

Ashley