[pure-silver] Silver Recovery

I am finally ready to build the silver recovery system I have been planning for 
some time.  Id welcome comments.

First I have tons of old dc wall transformers that are left over from things 
like old telephones, answering machines and any of a host of electrical 
devices.  As long as its DC current it should work.  Yet I may have some choice 
of voltages, if there is an  ideal voltage I should look for Id appreciate it.  
I think most of the old ones are in the 6 to 12 volt range.

It will be plugged into a power strip that is plugged into a GFI socket.  I 
guess it could be plugged into the GFI directly, but it wouldn't be as easy.  
Still as long as the strip is plugged into the GFI, it should be relatively 
safe.

As far as circulation I am planning to use an air pump to just move the water 
around enough to allow enough circulation around the electrodes to keep it 
working.  As far as the electrode material, I know one has to be copper but 
can't both be or does the other electrode need to be a different material such 
as stainless.  I have a couple of options on how to attach the wires.  The 
copper side I am planning on using a piece of either copper plumbing pipe or 
heavier copper wire.

As far as the container, I am planning to use a large plastic type of tote   
Rubber will be ideal if I can find it, but it sure won't be metal.

What am I missing now before I actually start building?

       
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