I found an active aqua 1100 gpm for 54.17 locally. It should allow me to do 20 gallons later if I want to. I plan to make that airlift design. It’s looks pretty simple, and if it works the best, heck.
I could brew in the garage, but it’s cold enough now, I’m not sure how fast the micro life would multiply. The rest of the year would be great though.