Really hoping I can get some help on this one. My rescue girl, no matter how hard I try, still doesn’t have the housetraining thing down (she’s over a year old and I have had her for four months now). I’m not giving up, still working hard, but her urine stains on the [...]

I’ve rented carpet cleaners and used the spot remover chemical. The stains keep coming back after the carpet dries.
One stain might be bicycle chain lubricant.
I’ve seen special cleaning equipment at the store, priced at approx $150 - any idea if it has a better chance?