Okay, since I got Marlee I had been using litter liners up until very recently so I havent' actually had to do more than rinse out the box. But last time I was emptying old and putting in new litter I didn't use the liner, and I don't think i'm going to from now on. My question is, what can I use besides plain water to wash the box out? I live in an apartment, so I don't have a hose that I can go outside and rinse it out. I'll just be using a cup/washcloth to clean it out and rinse it. I figure to really get it clean and get rid of any bacteria, I need to use something besides water. What can i use that won't hurt Marlee? I have the Orange house cleaner, but since I've heard citrus can be use as a deterrent to keep kits away, don't want to use that. I've got windex, bleach, some floor cleaner, dish soap and most normal household cleaners, but didn't know if any would be safe to use. Any opinions?