Board Thread:Off Topic/@comment-26397825-20150712053515/@comment-26740942-20150722184103

I agree with LiveandSound. Those tubes filled up like liquid rather than sand/powder. Although they have similar consistencies when poured, powder doesn't fill like that.

The bottle was being evenly filled all the way to the top, as if it were liquid. Powder piles up, liquid evenly distributes.