Things You'll Need
- Paper towels
- Antibacterial soap
- Portable black light
- White vinegar
Instructions
Clean up any visible puddles of cat urine with paper towels. Wash your hands well with antibacterial soap and dry.
Find any hidden areas of cat urine on the concrete with a portable black light. Shine the light all over the concrete. Any areas where there is urine will show up green or yellow in color, according to Planet Urine (see resources).
Pour a liberal amount of white vinegar on each area where you found cat urine. Allow it to set undisturbed for three to four hours. The white vinegar will neutralize the urine smell, according to Jan Miller (see reference).
Mop up the remaining vinegar with additional paper towels. Wash your hands again. Allow the areas to dry thoroughly on their own.
Repeat the process if you still smell cat urine in the concrete. However, one liberal application of white vinegar on each spot should do the trick.