Cat Litter Compost, Installment #3
...when it meets moisture, expands and crumbles into sawdust. This dust just builds up in a regular box, but in these perforated boxes the dust falls through to the bottom bin. You help it along by giving the box a shake when you’re scooping. This construction isolates the pee-soaked dust from the poo–and the clean, intact pine pellets. Once you scoop the poo out you’re left with clean, whole pellets. The following photos will probably explain this...
