If the spot has happened a while ago, you can skip this step. If you have a blacklight, you can use this to find old, dried cat urine.

Be careful when using enzyme cleaners since they can react differently on different carpets. Always test it out a discreet part of the carpet before treating the stain. [4] X Expert Source Haim ShemeshCarpet & Rug Cleaning Specialist Expert Interview. 12 May 2020.

Pour the vinegar solution directly onto the soiled area.

Avoid using a steam cleaner, as this can actually further set the stain.