in a herms setup? i have a bunch of 1/4" aluminum tubing, 25 ft. lengths, already coiled up in 3.5" coils. i thought i'd split them off a 1/2" tee, connect 2 together on each side of the tee, reconnect them at the other end to another tee, and return to the mash tun. my thoughts are the 1/4"...