I really need help now, I have 2 cats so unsure which one is doing it but one of the them keeps peeing in a small vestibule we have. It's a small space between a toilet and where we keep dryer and freezer. They have a cat flap in the dryer room and their food is in there too. If the to let door gets left open the cat will pee in there. I have used a spray and that stops it but if I run out of spray it starts again. My house smells now. I can smell cat pee in my living room, that leads to the kitchen which then leads to the vestibule. Does anyone have anything that could help me stop this? Please!