[erroneousfunk]

I made a post about this, above, but I would argue that urine isn't always possible to completely clean in some situations. We lived in a place with a carpet and a thick pad under the carpet. Combined with a cat that spontaneously decided to habitually urinate in that one spot (no history of it). We tried EVERYTHING -- it was a massive project for over a year to get her to stop and spent hundreds of dollars on cleaning. Every enzyme product and shampoo, hours of elbow grease, soaking, drying, re-soaking, re-drying. We caught it as soon as it happened, gave LOTS of care and attention, but no dice.

Even the most responsible owners with the best pets can have problems that can't be fixed without just replacing the entire carpet. It happens.

[dTal]

Sometimes with latrine animals like cats and rabbits it's better to just give in and put the damn litterbox in the spot they've picked.