That is dedicated dude I admire your passion for brewing especially a double back to back 12 gallon brew ! Think your set for a month or too or are you thirster than I think ha ha.Hmm mm all this 1gal,2 1/2 gal,5 gal talk and I'm thinkin 30 gallon is about right! I did 2 12 gal batches last wknd and it took too long! Lol