[LargeFormat] Re: Jobo 3000 Series Expert Drums

[Skip Roessel]

Don't know, but I believe Photoflo in the concentrations usually used would have
zero effect on B&W processes. In any event, if it sticks to the tank and wouldn't
wash off, no worry it would migrate into the chemistry.
Skip
skiproessel@mindspring.com

Clive Warren wrote:

> At 14:31 08/12/2002 -0500, Skip Roessel wrote:
> big snip
> >Much more important, I've found, is that the chemistry and especially the
> >final
> >wash water be perfectly filtered, so I send all the wash water and water for
> >chemistry through a paper coffee filter before use, and after the wash is
> >finished do a final afterwash with about 250ml of distilled water before
> >pulling the negs, sponging them and hanging to dry. Since then, no drying
> >spots
> >on the base side, nor dust or specks in the enlargments.  I've been told never
> >to use a detergent-style drying agent like Photoflo in styrene Jobo equipment,
> >as this chemical clings tenaciously to the plastic.  A half-pint of distilled
> >water seems a reasonable expense for five perfect negatives.
>
> Skip,
>
> Thanks for the drying ideas - the chamois leather wrap seems a good plan.
>
> As for Photoflo - that's a bit serious. I use the stuff almost religiously
> and have never had drying mark problems since I started using it.  There is
> also a lifetimes supply sitting in my darkroom! Does it affect the dev and
> fixing stages if there are minute amounts of flo clinging to the plastic?
>
> Cheers,
>              Clive
>
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