Response to Hand Agitation with Jobo Tanks

I have used the large 4X5 Jobo tank only twice for hand processing. Once I mistakenly attempted to run it with 2 reels of film on my CPE2 processor. The motor on that unit will not turn the drum with the large tank and a normal charge of chemistry. So I pulled it off the machine and rolled it by hand in the bottom of my sink for the entire time. The film was developed fine but it was not much fun - don't do this! The other time I tried it with 1 roll and enough chemistry to cover the film for inversion processing - thats a lot of chemistry. I gave up on the idea because it seems wasteful. If you don't own a Jobo processor I suggest you might try continuously rotating the drum by hand on some kind of roller base. You can use less chemistry and get good results.

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