I am considering using this to make colloidal silver. I like the idea of 
reversing polarity because it will slow down a build_up of CS near one 
electrode and both electrodes (hopefully) wear evenly. Also I have one of these 
around and it will save a bit for the time being :-)

Are there any "cons (& pros)" to this notion. I would appreciate your thoughts 
on this. Thank you.

regards
hg