I use fixer at 1+4 both for film an paper. Always reused, first for film but then I rotate it towards prints. I did have to dispose of 1L after a few rolls and quite a few 24x30 prints... Used the fixer on a Holga roll and it had an uneven pattern which was "fixed" (bad pun) after mixing a new batch of chemistry.
Originally Posted by retinax
That's like using your shoes or watch or frying pan one shot. Fixer is formulated to be re-used. No downside to it.
+1. So far I've just used HC110 as developer, that is one shot and simple. OT but I've seen reports of people reusing it for developing prints. Haven't tried yet that.
Paper Developer and Fixer is within the pool of "free to use" chemistry in our community darkroom. The former I do one shot and the latter, as said, I reuse.
Originally Posted by nikon_sam
I mix a gallon to strictly use for film, when I print I mix what I need from liquid concentrate then dispose it when done printing...when the film fixer no longer does its job after ten minutes I make new film fixer. I mix to manufacturer's recommendations...
Your post reminds me that sitting in a tray is not the best for chemistry, though so far I had no issues reusing fixer. But at 1+4 strength for RC prints it might have a long while until it exhausts/fails. The Adox rapid fixer I first used got a sulfur smell rather quickly but it seemed to work fine. The 5L Agfa fixer the darkroom has does not exhibit the same issue.