I know the thread on developing sheet film is a little old, but I just thought I would throw this in.
As I mentioned before, tubes are my preferred way of developing, but they are limited to as many tubes as you can juggle at a time. I just made a new system, by gluing nine tubes together. I was planning on using 12 tubes, but I accidentally bought 5 ft of pipe instead of 6 ft. I ended up with 10 pieces, but just put 9 together. I developed the first batch tonight, and it worked very well. The anti-halation backing doesn't cleared very well in tubes, so I took the film out and put them in hangers to sit in the fixer for a while. I also put them back into the used developer to get more stain (using pyro developer). For agitation, I lifted the unit out of the developer three times, every thirty seconds. See pictures at http://sa.kungfuchrist.com/cosmic9/tubes.jpg and http://sa.kungfuchrist.com/cosmic9/tanks.jpg John
