Quote Originally Posted by VPooler View Post
...the fixer bath turned slightly yellow and started reeking of rotten eggs and other foul things (it stinked already when mixed but not that badly!). It was plain nasty. I did a proper wash after bleach. The fixer worked OK for other roll, though. Is this normal?
No, not normal. It sounds like it is decomposing, and free sulfur is the result. So don't use the fixer.

In normal fixer, there is a reaction with sulfite ion that somehow reconverts thus sulfur back into thiosulfate. My guess is that your sulfite is all gone, possibly from long time exposure to air. If you happen to have some sodium sulfite around, you might try adding some, say 5-10 grams per liter, to see if this clears it up. But again, don't use it as is.