Thank you, Mike.  That seems simple enough.

Best regards,
Philip

mike cipolat wrote:
> 
> My advice is to throw that batch out and start over.  I have experienced
> that this discoloration occurs because the electrodes build up a black
> coating during the silver process.  These must be periodically cleaned.
> And as you say, you processed the silver for one hour.  The longer the
> process runs, the more frequently the cleaning needs to occur.
> Approximately every ten minutes remove the electrodes and wipe them
> clean.  Then continue the process.  This does tend to occur more
> frequently when longer processed times are used.
> 
> Mike