Originally Posted by GNBrews
I think the idea is that as the wort flows down through the straight section of tubing, it generates a vacuum as it passes over the holes. The slight vacuum introduces air bubbles through the holes into the flowing wort. I bet it works.
That made me wonder about that wand getting plugged up! This will be part of a new setup, with a 20 gallon aluminum pot\spigot, what are my options for filtering the wort? I don't really want to spend $60 on a hop stopper (not that there not great). This will be a gravity flow system for now.