Hey there. I have a 12 year old cat who is very neat and likes her litterbox very clean. When I bought and moved to my house almost 2 years ago, everything got so busy that I forgot to clean her litterbox for a few days and between that and the stress of the move she peed in a spot on my carpet in the living room. I've done my best to clean it, I've used various enzyme cleaners, got the carpet steam cleaned, ripped up the corner and cleaned underneath and replaced the padding but it still smells faintly (I'm sure stronger to her, obviously). My carpet is very thick and shaggy and I feel like it's been harder to clean it due to this. But since this incident, I added another box and cleaned both at least once a day, and she did not pee in the same spot again. The other day, I caught her squatting and about to pee in this spot and scooped her up and dropped her off at the litterbox. I panicked and bought a ton of puppy pads and laid down them all around the spot in the living room, and when I came home the next day from work, there was pee on the puppy pad. I recently took her to the vet in January and all of her labwork and exams came back normal. She is acting normally otherwise, and there's no new stressors in the house. She is an only cat, and I have no kids. What can I do to keep her from going in this spot? I feel like I've tried everything. I almost want to just rip up and replace the carpet entirely now but I'm worried that since she is old she might have another accident in the future if she gets sick even if it's unrelated to this. There's unfortunately no way with the layout of my house to keep her out of the room. Thanks for your time!