I have been using pyro developer for some time now without significant problems but have recently found that the activator is coming out of solution forming a crystalline mass at the bottom of the bottle. I use the pyro made by Mike Maunders (UK) which was sold by Creative Monochrome and also Retro Photographic (both UK based). For those not familiar with it, it comes in 2 powders which have to be mixed with distilled water to make the 2 concentrates, like PMK. I do not know the formulation as it has not been published. Has anyone else encountered this problem with pyro activator? I wonder if temperature may be a factor as it has been very cold here in UK – will this cause the recrystalisation? Should the activator be stored in warm conditions?
Any advice from the many experienced pyro users would be very much appreciated.