Fixer 'silvers-out' during hot weather

[Neil Grant]

..the inside of a glass storage bottle darkens considerably. Should I try cleaning it off or not bother? Is going to end up on the film or paper - surely it would just wash off a plastic surface and not be adsorbed.

 

[AgX]

As long as it sticks to the wall of the bottle there is no issue concerning the particles, but you can let it run it through a paper filter whilst measuring into the beaker.

But I would check for the quality of the fixer as such too. In case of doubt make new stock solution.