brothernature
Established
Is there an ideal replenishing rate for fixer? I guess there are a lot of factors to consider, but I'm wondering if anyone has found that replacing x mL of fixer per 35mm roll makes their fixer last longer.
Tom R
Established
The "textbook" heuristic was to replenish fixer when it takes twice as long as the published time for the film to clear. For example: if you're using a rapid fixer and the data sheet claimed that film should be cleared in two minutes and the film hasn't completely cleared in four minutes, replace it with a newly mixed solution.
I don't know if this still holds, but I cannot imagine why it shouldn't?
Of course, I just realized that you were asking a different question ... sorry about that.
I don't know if this still holds, but I cannot imagine why it shouldn't?
Of course, I just realized that you were asking a different question ... sorry about that.
CharlesDAMorgan
Veteran
Depends upon, among other things, the fixer you are using. If Ilford their data sheets give you guidance on replenishment. Given I am still on the 5 litre container of Hypam I bought 3 years ago, chucking rather than replenishing, I doubt it's going to make a material difference to your bank account whichever route you take.