Archived posting to the Leica Users Group, 2001/01/30

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Subject: Re: [Leica] Re: @#&$$& Watermarks!!
From: John Collier <jbcollier@home.com>
Date: Tue, 30 Jan 2001 17:47:11 -0700

Kodak recommends ten rinses for Tri-X.

John Collier

> From: Martin Howard <howard.390@osu.edu>
> 
> Ray Moth jotted down the following:
> 
>> I believe Martin's @#&$$& water marks may be caused by inadequate final
>> rinsing. To be sufficiently thorough, you must rinse at least three
>> times. Failure to do this will merely dilute the hard water minerals or
>> soap, it won't remove them completely. You will then get drying marks.
> 
> My rinsing procedure:
> 
> * Fill tank with fresh water.  Invert five times.  Dump.
> * Fill tank with fresh water.  Invert ten times.  Dump.
> * Fill tank with fresh water.  Invert twenty times.  Dump.
> * Fill tank with fresh water.  Invert twenty times.  Dump.
> * Fill tank with distilled water.  Squirt in Photo-Flo.
> Soak reels for 10-30s, pull them out, hang to dry.
> 
> That should be quite adequate rinsing.
>