Thread: Best way to eliminate old urine markings?

I spent the holiday weekend doing some spring cleaning in the basement, and oh boy what a disaster awaited me!! For weeks I kept cleaning the boxes and keeping the rest of the rooms in our semi-finished basement spotless yet I could not understand why it still smelled like pee! Well, turned out someone decided that under the stairs was a suitable place for that and who knows how long it was going on. I soaked the entire floor in that room with hot water and bleach, then again with a regular cleaner. Any tips for gettin this stuff out of the floors for good? There is vinyl tile and cement under it, and I fear that I may have to rip out the tile under the stairs. UGH cats!!! Merlin watched me as I hauled out all of the junk and mopped up his mess (well, it wasn't just him but I know what he gets up to sometimes!) If it wasn't for those fluffy faces, bushy tails, and chirpy greetings I'd just give up!