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 Originally Posted by Usagi
I have been in between sort of a change from flowing water to standing water (as I have sometimes problems with water quality).
During that, I have monitored washing quality using HT-2 and to my very big surprise, there's no stain in the (sheet) film after only one or two water changes (15 liters per change).
Film probably just needs far less washing than fibre based paper. Remember that your sheet film is made of pretty water impermeable polyester, versus the water soaked and contaminated paper base of a fibre based print. That probably makes a huge difference..., as the gelatin layer on the film base is just a tiny layer.
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" The nineteenth century began by believing that what was reasonable was true, and it wound up by believing that what it saw a photograph of, was true." - William M. Ivins Jr.
" I don't know, maybe we should disinvent color, and we could just shoot Black & White." - David Burnett in 1978
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Originally Posted by Marco B
Film probably just needs far less washing than fibre based paper. Remember that your sheet film is made of pretty water impermeable polyester, versus the water soaked and contaminated paper base of a fibre based print. That probably makes a huge difference..., as the gelatin layer on the film base is just a tiny layer.
That's very true. I have to check how final wash with only couple of water changes will work with gelatin based roll films. Perhaps they will require a bit more water.
Time will show 
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Originally Posted by amac212
Oh my word. Just fantastic, thank you for sharing!
yes! thanks for posting here is some more food for thought…
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