"tub sides being plenty of privacy...", Good point!
Yes I do leave 1"-2" of water in the tub at all times right now. It is (so far) breaking the behavior. She has transitioned to using the covered box. She mostly has that one to herself, the other cats do not often use it.
I do use pine. I buy bags of either horse bedding, or right now I buy furnace pellets because they're like $4 for a 40# bag. I have tried using chicken feed (which is identical to SWheat Scoop) but it was drawing mice. I need to use a litter that I can compost on my property, or scoop and flush AND it must cost no more than $6 for a 40-50# bag.
I definately agree that she probably doesn't like the texture. But on this matter I must be firm. It is the absolute best value, both for initial cost and disposal. I can flush the poop and compost the urine soaked pine. And since it is a natural plant product, I can dump it out on the curb with the leaves at "fall cleanup" in my town. We don't have a trash service and the recycling center doesn't have a plant rubbish bin. I guess I like how it breaks down too. When push comes to shove, I can dump anything out on my mother's country property...but I hate seeing the GIANT PILE of clay litter...like my sister has at her house. It's unsightly and it doesn't go away.
I guess I'm as stubborn as she is. Actually probably more-so. Like owner like pet...sigh. Things are looking up though. Since putting water in the tub, she has not had a single accident anywhere. She has taken to using the covered box all on her own. I am planning to keep the water level on the tub the same for at least another month. Then I think I shall try lowering the level slowly. If she relapses, I will refill it and start over.
Also noteworthy...She has NEVER EVER had a "normal" solid poop before. It has always been the consistency of pancake batter. MMMmm pancakes.... We started feeding raw to all 9 of our cats a few days ago, and she is now pooping normal. I know I've already mentioned it, but I am just so happy she has normal poops! She must feel better too. I know I would feel yucky if I always had diarrhea!!