Line your littermaid plastic bins with grocery plastic bags. This keeps the waste bins from becoming soiled and they won't have to be replaced as often. Simply lift out the grocery bag each day and replace the bins when cracked. Cat litter miracle!
I am not sure what you mean by your post but I clean mine out every other month or so outside with the hose and a rag I throw away. I chnage the litter every two weeks. I have never had to buy a new litter box.
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