This may be what you remembered:
Zephr said "But the frothy mess doesn't stink... No more than the grubs, pond, and fish tank do. An improvement over holding anerobic and covering.
I've not mixed it. I'm on my first bucket. Normally it just gets spread at will about the yard. But I do remembering reading that it has some function... Somewhere. I should keep record of my sources.
Oh well. I keep two buckets. One little fresh compost bucket that usually stays pretty clean-ish. The other bubbling away tucked away in a unobtrusive corner.
Aerated water always handles better. Air stones are easier than waterfalls.
https://permies.com/t/38680/Urine-Aeration-bioponics-urine-compost#1322120
I tried making a fermented tea for my plants several years ago though if I remember correctly I saw no results at all.
Why not experiment and see what happens.