LOL Twinks. Vicks vapour rub?

For Blessings and breezy,
Are your cats spraying or are they actually urinating on the carpets?

Once you do get the odour out, and that may be difficult, there are a few other things I thought about.

One is that cats don't like their kitty litter near their food or water.

The other was for breezy about the number of cats in the house and if they share the litter?

There's also the pheromone spray. No idea if it works but there have been posts here on this forum about this problem before.

If your cats are stressed and are lucky enough to have the catnip gene, get some catnip toys or if they're able to go outside into a safe area, plant some catnip there.

Biozet is an enzyme detergent here and it's grey water friendly and apparently very good in removing the odours. You have that in USA? If not there must be something comparable. It's probably cheaper than something from the vet..