Sorry Jason, don't know anything about flat electrodes. Praps I shouldn't have
said anything. You know the old saying, "Rather not say anything and let
people think you're an idiot, than open your mouth and remove all doubt"...LOL.
Thanks for your insight regarding pads.
Well here's one hypothesis, the suspected poor quality DW used on that
occasion, in combination with the stir bar spinning action, may have developed
a situation whereby whilst in storage some silver was pulled to the centre
where the stir bar spun? Cross contamination? I know silver is not magnetic,
but who knows if other unknown contaminants in the DW may have combined to
encourage that end result? I don't know, perhaps a magnetic field was created,
again with the combination of impurities in that particular batch of DW,
created an opening/situation for some "reaction?" or agglomeration or
"something?" to take place, and to take place *only* where the stir bar was
situated?
What confounded me was the fact that it not only occurred once, it occurred
twice after filtering and cleaning that storage vessel out?
Another of life's mysteries I guess.
Cheers
N.
> Date: Tue, 17 Feb 2015 17:50:02 -0800
> From: ja...@eytonsearth.org
> To: silver-list@eskimo.com
> Subject: Re: CS>Electrode cleaning?
>
> Hi Neville:
>
> I remember reading your initial post and being puzzled by it, but not
> having anything of value to contribute.
>
> As far as scrub pads contaminating pure silver, since silver is way
> softer than steel, risk fo contamination is low unless you think
> cleaning the silver is a sanding project.
>
> You make my point. I myself use a plastic scrubber for my
> straight/rounded electrodes, and have no problem. The point of using an
> abrasive is to eliminate or reduce the electrode degradation, which is a
> significant issue in my opinion, as far as it effects the brewing
> process. You might be able to get away with using a paper towel to
> clean electrodes, but you also might be surprised at the amount of
> jagged edges are actually created on the silver electrode in the
> standard "home brew" setup, over time.
>
> Cleaning my Silvergen SG7 electrodes is much more involved. Luckily,
> the degradation of the electrodes is very minimal due to the reverse
> polarity used and the rapid water circulation. I have to use makeup
> removers, which are made from a dense cotton, similar in shape to Q-Tips.
>
> Since these are flat electrodes, ***the silver oxide particles that do
> build up*** on the electrodes provides enough abrasion to reproduce a
> completely smooth surface on the electrodes, thanks to the perfect
> design of the electrode configuration.
>
> ~Jason
>
>
>
