Hav you always used the same litter? Maybe you need to change it, especially if it is scented, go to unscented.

Have you got a Feliway? It will work on all the cats, aggressors alike.

I would also get on of those Pee finders from the pet store, it's like a black light.

This will give you an idea of the extent of the problem, and help you correct her as you go.

The only other thing I can think of is to isolate her and retrain her with the box.

I'd hate to have to go through this, as it is so disruptive to life.

You could aslo se how receptive she is to actual toilet training. Ther are kits for sale that transition them over to using the toilet. She wouldn't have to compete with the other cats for this, I don't imagine.

In any case, it is a long road.

i'm sorry you have to go through this.


Rose