If you have a cat, changing the litter box comes with the territory. A regular litter box, not a mechanical one, is what to use. Mechanical ones can scare or even injure the cat if begins to clean while the cat is still in it. It is also an ineffective cleaner. It may get the feces, but it simply cannot get the urine. So, your cat has a urine filled box all the time. Also, because of the motor and storage for the waste, the cat has a very small area to use and most cats don't like small boxes.
If you'd still like to check this out, follow the link below.
http://www.citikitty.com/
