After much research, we found that the bio-slime is acually leftover pure Gelatin that is used to suspend silver halide crystals in photographic film. It is normally not an issue in the developing tanks because the temp is at 95 degrees. But when it reaches the wash tank the Gelatin starts to...
I work for a newspaper. Our film processors accumulate a clear emulsion gel in the rinse water tank. Over a few days it develops an algae type of build up all over the tank. We treat it with mild bleach, however the bleach and photo development fixer vapors combine and cause corrosion on the...