I wanna brew some 10 gallon batches of beer, and need a 15 gal capacity fermentor to do so (i don't use blow off tubes, should I? ha). But at any rate, searching for something to that extent, and additionally I'm trying to see if anyone has some 10 gal corney kegs out there. If there isn't such a thing, I've seen regular 15 gallon (sanke) kegs with the corney top welded in. This was seen at Southern Tier brewery for the purpose of getting a massive yeast slurry. Anyone have either of these?