Washing Your Film - A collection of how different people wash & save water

PMU, Arer you talking about dust that gets on the film after hanging? It sounds like you might have sediment in your water? or hanging film in bathroom and turning on fan. I use tf-4 fixer. I use stand in water with 5 changes in 30 min. Slosh a little with each change. Fixer not only has to rinse off but has to leach out of the emulsion. I'm not convinced that 5 minutes of fast changes are enough.
418,in fact HCA is NOT required in all cases with B&W film. I use an alkaline fixer and it is stated in the instructions not to use it.
I think tom has answered you question with plenty of references. You have only ten years lab tech experience. Many on this forum have 30-40 even a few with 50 yrs experence. It is not my intention to put you down. But to let you know if you hang with this forum you knowledge base curve will take a plesant upturn. I came here with over 30 yrs experience in LF and it was an explosion of new ideas and information.

vet173 said:

PMU, ........ ...... ......
.... You have only ten years lab tech experience. Many on this forum have 30-40 even a few with 50 yrs experence. It is not my intention to put you down. But to let you know if you hang with this forum you knowledge base curve will take a plesant upturn. .....

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????!!
I, PMU, Petri Uutela from Finland that is, do not have 10 years of experience in lab tech. In fact, I have lab tech experience of 0 years. And my film developing experience is maybe 10 months long... You must be thinking of someone else -- not me. I am a 100% beginner in this stuff and I am the first one to admit it.

I did this my washing method based on these posts that you all have written here -- a combination of your different kind of methods. And some of you use HCA... and I just recently bought HCA...so that's why I used it. Maybe the fault is in the drying area -- I must check that evem more carefully next time.

pmu said:

????!!
I, PMU, Petri Uutela from Finland that is, do not have 10 years of experience in lab tech. In fact, I have lab tech experience of 0 years. And my film developing experience is maybe 10 months long... You must be thinking of someone else -- not me. I am a 100% beginner in this stuff and I am the first one to admit it.

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I think the second part of Vet173's post was addressing another user that posted earlier (7 months ago?) that went by the name "418".

--John

JHannon said:

I think the second part of Vet173's post was addressing another user that posted earlier (7 months ago?) that went by the name "418".

--John

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Ok, thanks John for clearing that...

About this my "problem" -- I think that dust came while the film was drying. When I closed the bathroom door, I noticed drafting...that must have caused that dust flying all over the room...Usually I don't close the door and it seems to be better that way. Anyway, thanks to you vet173 for trying to help me.

I use one of these for my rollfilm drying. Have little or no dust problem since. I think it's because the air is blasted past the film so fast, dust doesn't have a chance to stick.

FWIW, I'm a recent convert to this method of washing. I've got a couple of the posts printed and taped to the inside cabinet of the kitchen where I process my film. Even when I get my next darkroom built, I doubt I'll go back to using constant running water. I'll just keep a big 5 gallon thing of tap on the ready.

-KwM-

PMU, yes I was addressing 418 not you.

Petri, I have also heard about using clear plastic enclosed clothes hangers. Long enough for rollfilm with a zippered front.

--John

Tom Hoskinson said:

That is correct, Paul. However, it has been demonstrated that
it can also remove compounds from the print that are essential
to long term image stability.

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The IPI, though, has suggested total elimination then
replacement as an ideal solution. As a replacement perhaps
they had sodium sulfide at a 1:9,999 dilution in mind.
It worked so well with microfilm. Dan