I have a couple of hundred sheets of Foma100, that I need to develop. I've been using my combi-plan tank for half a year being modestly satisfied... so I thought:
Shouldn't I easily be able to develop 12 sheets at a time instead of 6?
I ran four cycles today and none of them came out properly - giving me 48 more or less damaged negatives... no wonder I feel like a complete arse today.
Problems seem to be some kind of blue/green film on the plastic base, that doesn't wash off properly. I load the film back to back, emulsion facing outwards (of course) and keep it that way through fixing and washing... which is probably the problem, right?
On the last batch I ran a second wash i my sink with each negative at a time. They came out better and clearer, but this extra washing time almost ate the time saved by running a double batch. Plus, I STILL got a lot of marks on the plastic base, that I cannot get rid of - and some of them are visible against light too.
So, to those of you who do this with success, how is it you run 12 negatives at once with NO issues?