More often or not, I purged only a few days ago. I just didn't need the 'bucket of death' as you called it. Guess my mood was consistent enough the past month, so there weren't strange fumes. My system's still pretty clean, so it'll take at least a week- possibly longer- for enough stuff to get backed up.

[It's kinda like tracking one's period. Just no blood, and an idea of whether or not it'll come more often or not!]

You think maybe they've been storing a bunch for a while, like before Gate Walkers started showing up?