Sometimes a â€œlitter box problemâ€ is just a litter BOX problem. Create a box, and you might solve it.
Our lovely orange DLH, Vernie, likes to spray. She usually stands to pee for no known medical reason and did this even when she was the only cat in our household. Due to the height of her hindquarters or perhaps pure skill, she can crest the sides of most litter boxes on the market.
Vernie needed a customized box, and luckily I remembered advice from Pam Johnson-Bennett in her book, Cat vs. Cat. Use a storage container, she suggests, and just cut a â€œu-shapeâ€ on one side as an entrance. Although Johnson-Bennett mentioned Sterilite containers, I could not find one in my town that met my height requirements. I bought Yaffa storage containers similar to this one instead, along with a pair of â€œtin cutters,â€ scary over-sized scissors recommended by a hardware store associate for cutting plastic. (I found a jagged knife designed for cutting plastic left an equally jagged edge. The tin cutters really were my best choice.)