My cat (male, neutered, 3yrs old) will use a litterbox to urinate, but he also uses the corners of rooms, along walls, my couch, etc. I use Natural's Miracle Urine Destroyer and it gets rid of the smell and stain with no problem, but that isn't the solution. I have used the ScoopFree...worked for about 3 weeks and then nada, so I returned it based on their guarantee. I have tried Liter Maid, still a no go. I used the round automated one for a long time (forgot the name, but it isn't made any more), and still he would sometimes use it and sometimes not. I am now using the Omega, you know the one you manually role on it side and it filters. I have tried different brands of litter, changed his food (expensive stuff vet recommended), even moved the litter box to the area of the room he urinates the most in, and still he will go right there on the floor next to the box. The vet says there is nothing physically wrong with him, he has been tested and given meds just in case....still no go. He started out litterbox trained but as the got older (3 yrs now) he just goes where it is convenient. The vet even told me to confine him in the bathroom for 3 days each time I catch him urinating, well after about a day and a half, I give up because of his screaming and let him out. I don't want to buy another $150 box if he will use it for a few days and then right back to the carpet. I even put that cheap plastic running down that, the one with the little "nubs" on one side to keep it from siding, but I can't line my floors with that. He won't urinate on it, but he will go to the carpet right at the edge of the plastic. I even used Cat Attract litter AND Cat Attract additive, and nothing. I tried spraying that Felaway around and that didn't work either, neither does that "stay off" type stuff.
At the moment, it seems I may have to give him up and that just kills me, but I don't know what else to do.

