There are way too many bright people on the forum for me not to ask. I'd love to buy one of Yuri's fermenters but I bet the line is standing room only and I'm not sure how many he is making. So, I was thinking of trying to convert a 15.5 gallon keg I picked up at a garage sale into a fermenter. I have two problems, I only MIG weld so I'll have to pay someone to do some welding but I think some homebrew will work as payment for one gentleman I found. I will use the racking port assembly that will rotate but I've got one problem or question. With a conical, one simply opens the valve and you can drain the trub and yeast. Then continue to ferment as a secondary and finally rack off with the other valve when secondary fermentation is complete. If I convert a keg, how would you recommend draining the trub? I haven't come up with anything and am looking for suggestions.