i got 2 cats a week ago from gumtree. they are 7 and 9 months old. the 9 month old one is ok. but the 7 month is pooing all over my house. im keeping the litter tray clean and when i see the cat sniffing about etc i put him in the tray. but i dont always catch him or know hes done it. my house is going to end up stinking of cat wee/poo. any advice. thanks