Yes, I often develop sheet film myself in BTZS type tube with divided Pyrocat. You should have two caps for this, however. Cover the tube with one with the film in it, fill the other with developer. Presoak the film, then when you are ready to develop drain the tube and place it over the cap with the developer. When you are ready to develop just turn the tube over and immediately began agitation by moving the tube up and down and side to side. After a minute you can put the tubes in a water bath and bob them around as with standard BTZS technique.
Sandy
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