Thread: Best way to eliminate old urine markings?

I was wondering the same thing. We have old wood floors with cracks between the boards and I really don't want to pull those up. Baking soda is my first plan of attack, if that doesn't work I don't have any other good ideas.

I don't know about urine but I once dropped a glass of red wine on a beige carpet - as you imagine, whatever I tried just made it worse, but I decided to try some mouthwash (Colgate Max White One) - just pour a little bit - doesn't work on the teeth, but very efficient on carpets, you can't see the stain any more - and it's minty fresh!
Where Trespasser (Neevie's friend who comes to say hi) peed repeatedly on the doorstep, I washed with water and whatever detergent I had at hand, but Trespasser came back and did it again ... untill I took half a lemon, and just scrubbed the whole surface (which I had just washed) directly with the lemon. Trespasser never peed there again. Obviously can't really do that with carpet, but may be once you have tried the mouthwash, try to spray with lemon juice so they hopefully don't feel like going there again?