I really appreciate this topic and would like to thank
@Sharon14 for the helpful link and
@julietb19 for starting this thread. I used to post here under 'Audrey's Mom', but silly me forgot or didn't write down my log-in information and I hadn't posted for some time, so I've had to start anew with a new profile and slight name change. I got away from the boards for a bit.
I'm undergoing the same problem with Audrey cat as you are with Diggy. I honestly don't think Audrey has ever truly seemed regulated with her insulin and she was diagnosed December of 2014. I might as well be shooting saline or water into her (2 units x daily) instead of Levemir. Took her to the vet again a couple of weeks ago. She did indeed have a bladder infection and has now been on an antibiotic called Veraflox (28cc in food once daily until done). 2 weeks later and a bit to go yet, no improvement in the "outside the box business". Vet said let's tackle this infection first, and after she's done the meds, this vet wants me to do an at home 24 hour glucose curve and bring the results back to her for further review. That was a bonus that this nice lady vet is encouraging and accepting of home testing! The vet also apologized for the initial diabetes diagnosis in the fact that their clinic lagged with follow up and we fell through the cracks a bit. Great clinic...I sure like this vet more than the last one at this well regarded clinic.
I literally keep my mop out permanently. It's never put away, and I change the water constantly. I am cleaning up huge lakes all the time. Every time I turn around, there seems to be another one. Always in different and weird places now (Surprise!) - and now she's starting to poop everywhere as well. It's extremely tiring. Thank goodness we keep the carpeted bedrooms doors closed (which bites) and the rest of our home is about 12 year old laminate flooring, which needs to be replaced soon enough, but not until this gets nipped in the bud. Our laminate is starting to buckle in some lesser travelled places if I'm not home to mop right away. It's really bringing me down.
I've tried buying a brand new litter box, trying 2 litter boxes, changing location from its original spot, taking the litter box lids off, still using same brand of litter we always have from when she was a kitten (she's around 11 now and has never been a litter snob in the few times we had to buy a different brand), and an entire host of suggestions I've read online. I've not tried the pee pads yet in her box (sans kitty litter). That's my next step. And yes, it has, in cases, seeped under the baseboards and is so gross.
There has been a change in our household which I was thinking about the other day. Our beloved almost 18 yr. old little Shih-Tzu had to be put down in April, and the pets quite liked each other. Audrey though was peeing outside the box then and before then about 25-50% of the time. Now it seems to be about 99%. Sometimes the base and perimeter of the litter box is literally dripping with urine. Her box has always been conveniently located in our main floor laundry room just off of our kitchen, and there has never been a placement issue.
I apologize if I derailed this thread with my own venting, but I totally understand the frustration that Diggy is putting you through as well. Hopefully there will be a solution for you and Diggy boy! All I know is that I'm at my wit's end. My spouse isn't too happy about the situation and he doesn't see the half of it as he travels frequently for work through the week. He's not a cat hater, but neutral. This is ticking him off.
I'm not sure what kind of cleaner to recommend personally (I think I've tried everything!) I do know, as mentioned previously that they should be enzyme-based cleaners. Sometimes I have given up in that department, as I know there will just be another puddle re-appearing. I've asked our adult children when they visit if they can smell lingering cat urine and they don't, so maybe something is working?
In passing conversations with colleagues, acquaintances, some of the hard nosed ones have said have said they'd put a pet down who did this. I, for one, would NEVER, EVER put a pet down for accidents. We take our chances and know that might be part of the deal when we sign up to become parents to our beloved pets. When our precious dog started losing her faculties and near the end when there were constant puddles of pee and blood (poor baby!) we got through the unpleasantries. Now we need to battle this one too.
Keep us posted, Juliet on little Diggy (adorable name, by the way). Again, sorry for my rants and a possible hijacking of the thread, but I shall be following it and other urine related threads with great interest. Audrey will be seeing the vet in the next couple of weeks, after meds are done and I pry my eyes open to do a 24 hour glucose curve. I have all the equipment...just a matter of getting to it.