[pure-silver] Re: Self-Made HypoClear any good?

Thanks Ralph,

That's what I replied to the french guy without being really sure of it.
My tap water is pretty hard here but as I use a softener I've never had a 
similar experience.

Cheers,
Claudio Bonavolta
http://www.bonavolta.ch

----- Message d'origine -----
De: "Ralph W. Lambrecht" <info@xxxxxxxxxxxxxxxx>
Date: Sun, 26 Nov 2006 21:01:24 +0100
Sujet: [pure-silver] Re: Self-Made HypoClear any good?
À: PureSilverNew <pure-silver@xxxxxxxxxxxxx>

>Claudio
>
>As I learned today, hard water causes this whitening. It's a deposit of
>calcium sulfite from the hard water.
>
>
>
>
>
>Regards
>
>
>
>Ralph W. Lambrecht
>
>http://www.darkroomagic.com
>
>
>
>
>
>
>
>On 2006-11-26 20:53, "Claudio Bonavolta" <claudio@xxxxxxxxxxxx> wrote:
>
>> Ralph W. Lambrecht a écrit :
>> 
>>> I started to make my own HCA, mixing 20g of sodium sulfite to 1 liter (2%)
>>> as a working solution. I noticed that when I poured the solution into the
>>> tray that the last 10% or so were not as clear as the rest (the solution is
>>> a week old), but it seemed to mix OK.
>>> 
>>> After fixing I power-washed for 5 minutes and then used the HCA for 10
>>> minutes, followed by a 30 minute wash. Then I wiped the prints off
>>> (squeegee) and hung them to dry. I noticed later the the wiped-off liquid
>>> turned white. Apparently some of the HCA is still in the print after a 30
>>> minute wash!
>>> 
>>> Questions:
>>> 
>>> 1. Does the residual HCA harm the print?
>>> 2. What is the best way to deal with this?
>>> 
>>> 
>>> 
>>> 
>>> 
>>> Regards
>>> 
>>> 
>>> 
>>> Ralph W. Lambrecht
>>> 
>>> http://www.darkroomagic.com
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
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>>>  
>>> 
>> Hi Ralph,
>> 
>> I commonly use a 20gr/l of sodium sulfite as washaid but I dump it at
>> the end of the session.
>> I've never experienced such milkiness but have recently received an
>> email from a french guy that had such milkiness with the original Kodak
>> HCA product which is supposed to last much more that the simple sodium
>> sulfite.
>> I've no idea what causes such milkiness ...
>
>
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