making the first hole in the litter box

Well, today I made the first hole in the cats' litter pan. It is a sitz bath sitting in the toilet, with some litter in it. It's been there for about a week and the cats haven't had a problem with it, so today I cut a little hole in the back of it. Since the plastic is rather thick, I had to heat a paint scraper so I could melt the hole. I made a little triangle shaped hole. I'll leave it there until Friday and if there are no problems, then I will enlarge the hole, and pending no problems I'll enlarge it again every Tuesday and Friday until there is no more platform to stand on and the cats are toilet trained.