I have 3 cats in the house that will not use the litterbox. It started with the oldest, misty. Misty is an 8 year old spayed female that we found in a drainage pipe as a kitten. She used a litter box fine until she was about 3 years old when I brought home a puppy. She then started peeing on only my things. anything I left laying around she would pee on but would leave other peoples things alone. We had her checked for a UTI but she didn't have one. I just had to make sure anything of mine was kept up. Then we found 3 kittens 4 years ago, 2 boys, one girl. one boy and the girl stayed outside the other came inside a lot and he used the litterbox perfectly but passed away this past fall. Since getting these 3 Misty started peeing everywhere in the house. The female, Angel, has started coming indoors this winter. she has never known to use a litter box so has been peeing and pooping everywhere. We try to keep her outside but she runsw in everytime a door is opened. We are hoping to get her to stay outside now that the weather should be warming up soon. And lastly we got a kitten 1.5 years ago. she used a litterbox when she was a kitten. She stayed in a crate until she was litterbox trained. Now she too pees everywhere in the house. So we have 3 cats in the house that will not use a litterbox now. We have 3 litterboxes in the house right now. We have tried different litters. We are thinking about taking the carpet out of the room they pee in the most and putting in tile. Also thinking that over my spring break next week, I will confine the cats to one room and try to get them to start using the litterbox. would this work? and how long would they need to be confined to this room? When I let them out will they just continue to pee everywhere again? Any help is greatly appreciated! Sorry this is so long, I just really need this problem fixed!