I would have to say it gets scooped every other day (sometimes more or less) with the three cat brats. It gets completely emptied, washed, and dried every weekend. Then, it gets filled with some awesome Feline Pine and a little sprinkle of Tidy Cat deodorizer. I can't even smell the box with the FP. The reason I add deodorizer is that *SOMEONE* ends up doodying in the litter box as soon as I change it regardless of how clean it was before hand.