<human>: Provide a brief overview of the text.

Where to start...? I've got a 14 yr old diabetic cat with the start of some kidney problems who started improperly urinating outside of the litter box over 6 months ago. Her diabetes is under control now but she's still peeing outside of the box. We tried just about everything you can think of: cat attract, adding another litter box, switching litter, moving the litter box to where she peed, getting a different litter box, pee pads, UTI treatment, you name it. She seems to prefer to urinate on soft things on the ground which is why the pee pads seemed like the best solution and she definitely prefers to use them. But when she's done, she folds them over like she's trying to burry it which means that when she needs to use it again, the plastic side is up and its ineffective. We've tried taping them to the floor but she doesn't like using them as much.

Her previous litter box was open top box with high sides because she pees over the edge. We placed a stool next to it for her to step on to get in and out of the box. We suspected that she's got some hip pain which is why she prefers peeing on ground-level things so we made out own litter box out of a large 1.5ft x 3 ft storage bin with a hole cut in the side for her to walk in and out of. Its massive so its not like she doesn't have enough room. The bottom is covered in litter in the back 2/3 of the box, but when she pees she will just put her front paws in the litter and pee on the plastic base which she steps in when she leaves the box. Perhaps she doesn't like being confined in a litter box? Whats annoying is that she'll poop in the back of the box on the litter. We really don't know what to do at this stage. We've had to keep her locked in the kitchen when we're not around to make sure she doesn't pee on the rugs, couch, etc (which she's done in the past) which really isn't a good solution for her. Any suggestions? We're desperate!
<bot>: cat pees outside of litter box, likes peeing on floor-height things, can't find litter box solution.