Response to Pyrocat HD in tubes?

I use Pyrocat HD both in trays and for rotary processing. Times are obviously different between the continuous agitation of rotary processors and the intermittent agitation of trays. I've experienced no trouble with rotary processing - I've read about the excessive oxidation and 'bombing out' with PMK, but I've never experienced this problem. I use about 300ml of working solution per 8x10 sheet (the usual 1:1:100, no increase in A solution etc). Maybe the problem turns up with the smaller amount of solution used in 4x5 film - the increased A solution should do the trick in that case. Good luck, DJ.

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