Depends on which one you get. Like the LitterMaid I know won't start cleaning while they are being occupied, and I think most of them have sensors so they won't do that but if you like to look at some. Here is a link from where I shop for cat supplies, when I find something nifty. http://www.drsfostersmith.com/ They have one on sale, if I'm not mistaken. I'm planning on buying one as a going away present to my parents, since they are getting old and can't bend over and clean out the litter box as easy. I'm thinking the replacement cost might get expensive if your on a low budget. The littermaid will rake thru a scheduled time Like 30 min or something and it also senses after a cat has been in and will wait a while after the cat exits before raking thru. I don't own one but I have seen paid advertisment on the T.V.Originally Posted by slleipnir
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