The video is from a link to another forum of someone's round Yorkshire square fermentor set up in this post.
https://www.homebrewtalk.com/forum/...r-favorite-recipe.472464/page-47#post-8535393
I am looking to try and recreate something similar to see if I can tame the phenols from WLP037.
I ferment is SSbrewtech brew buckets and found they have a premade lid for the mini brew bucket with a big hole in the middle.
https://www.amazon.com/gp/product/B07M7B2B48/ref=ppx_yo_dt_b_asin_title_o05_s01?ie=UTF8&psc=1
The plan is to use one of those lids to connect a yeast trough(plastic bucket) to the main fermentor.
The center hole is 1.75in so hopefully that it large enough allow a good portion of the yeast to escape.
When I watched the video it looked like the level of the beer in the fermentor was considerable lower than the top of the fermentor, but I seen comments that the fermentor was filled to the brim. Not sure how important that is going to be, but I have had yeast escape through the airlock hole from a 3/4 filled fermentor before so I think it will find it way if I fill it almost full.
Might first try just putting a aerator thing like in the video into a big stopper (no yeast trough) and do a closed system automated rousing to see what that does.