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Comment by Nick Scud on May 23, 2013 at 5:04pm

Actually, yes, it's intended for 2 things:  1)  to serve as a better grow-area for lettuce (since my tiny 35 gal roughneck is barely big enough to be called a "raft bed".  2)  I needed a bypass - basically my sump is only a 55 gal drum, so rather than driving 100% of the sump-pump flow back to tank, is on basically a 60/40 split:  60 to tank, 40% to the NFT "snake" (I call it a "zig zag")..  Anyhow, I just cut 3" holes in the snake like today, so I'll have room to place 22 3" hydro-cups for the purposes of growing lettuce and possibly some spinach and swiss-chard.  Since I don't physically have the space to accommodate a respectable rafting-bed (AND since I needed a bypass line) I figured a zig-zag NFT solution would serve both purposes nicely..  so far, so good. 

Comment by Nic Cantin on May 23, 2013 at 4:39pm

you got me curious here, Is the snake shape 4" pipe intended to add more grow space or does it have another function ? 

Cheers