Here's my larger 3 tier gravity feed system... 40 gal cast out wort (8 x 5 gal kegs)... 30 gal + 2 x 15 gal brew kettles, 40 gal mash tun, 30 gal HLT... I set this up in my garage... I do all my hot liquor up in a 55 gal plastic drum with a heating element overnight then in the morning I...