To ask how to remove cat pee stain!

[BlooperReel]

New cat, litter trained but had one incident on his first day home, I have light coloured carpet... have tried vanish pet spray and the simple solution pet stain cleaner, but it still looks yellow. Help!

Rug doctor foam and a nail brush, works on anything, but make sure you have used an enzyme cleaner first or the cat will keep peeing there

Thankyou!