Yesterday I was about to mix the final litre of working solution from a Kodak E-6 5l kit. I noticed that a small pile of clear crystals had formed in the first developer bottle. I assume the first developer has gone bad, but I would like someone to confirm this. What do you think?
I opened the kit in July and have mixed 1 litre working solution when needed, and haven't had any problems so far. I have topped up the bottles with Tetenal Protectan every time. How long can I expect the concentrate to keep after opening?