This is called plateout or electroless plating where a certain amount of
metal sticks to non conductive surfaces.
Ken

At 01:18 PM 7/1/01 -0400, you wrote:
>For what it's worth, I've been using an air bubbler to stir the water
>while making CS; and I am now seeing silver film in the air hose that
>has been down into the water. 
> Wondering if the air bubbler is putting out some kind of
>contaminate..........
> Otherwise the CS looks fine. 30 ppm and no visible particules. 
>
>
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