Lol, sounds like a long process, but a good one for getting most of the dust out then. It's cool you can get most of it out too. I tried a couple diff things with it, but always couldn't get a lot of it out or enough to be satisfying for me. I was always just worried about my snakes and what could happen if I didn't do it well enough. Maybe I will try again.
I really want to someday soon snatch up a kenyan sand boa and I know they love digging around and buring themselves. The carefress is awesome for that and would be better than pesky sand which also worried me when using it with animals (including the calci sand)