Bucket 3 will be filled first followed by bucket 2 and then bucket that I that is supplying. Bucket 7 is not going to be filled at all but water will still come into it but will not stay.. It has an opening at the bottom. 4,5, 6 is the last because no drop of water will even come to it.
@izbing and @moeknows may you pls follow my blog and upvote my latest posts. Thanks.