Hi all, I'm a bit of a lurker on the litter tray but find myself in need of a bit of advice. I've got 3 cats - 2 boys and a girl, they are all nutered, up to date with vaccinations etc but I'm having some problems with our girl. She's just over 2 yrs old and will not use the litter tray, up until recently she would wee in it but only poo beside it (I can cope with that although I'd rather she didn't) but now she is refusing to wee in it and going either behind the tray or next to the door. I clean up with bio washing powder and floor cleaner but I really need her to stop! We've got 4 litter trays that are kept clean, one of which is covered and I've tried all sorts of litter but nothing helps. Can any of you wise cat slaves give me some advice please?