White dust after c41

BMbikerider

Member
Joined
Jul 24, 2012
Messages
2,951
Location
UK
Format
35mm
Just how long do you wash the film after the fixer stage. If you use a rotary processor it is suggested in most developing kits that 3 mins is adequate with 6 changes of water with one change every 30 seconds. I do 8 changes. I do the two extra changes just because I have always done so. This is followed by the final bath on the slow setting of the motor for 1 minute. I always use tap water for the washing stage, never distilled, and I do not get problems.
Perhaps attention to fine detail is getting in the way of practicalities. This is the same for both B&W, colour and when I used E6 reversal, nothing has changed.

Even my drying procedure is simple and uncomplicated. The films are hung in the doorway of my darkroom where they get a gentle flow of air and dry in around an hour.
 
OP
OP

yya

Member
Joined
Mar 8, 2023
Messages
214
Location
Australia
Format
4x5 Format

I changed the water around 6 to 8 times, so I don’t think the issue necessarily lies with the washing step. When I was mixing the fixer, I noticed that it wasn’t as crystal clear as distilled water — there were some suspended particles visible to the naked eye, although they were so small that I couldn’t identify what they were. So I bought Whatman Grade 4 filter paper to run another test.
 
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