My generator is home made and does not have a swap mode. The higher the DC 
voltage, the faster the process takes place. This can result in a quick build 
up of black on anode. I am using a 12 v adapter and clean the electrodes about 
every 30 minutes using a plastic pot scrubber.
Opa

Sent from my iPad

> On May 21, 2015, at 1:02 PM, JD <[email protected]> wrote:
> 
> I have a Silver Puppy and use swap mode.  In past, wires were always a 
> whiteish color.  Recently, they have had more of a blackish color.  What 
> color should the wires be after making the colloidal silver?  Also, should 
> the wires be cleaned, what is the proper procedure?
> 
> Thanks
> 
> 
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