This copper cell will be used to recover PMG slimes. Last year I smelting by PMGs from my stock pot and copper recovered from cementing my wastes out with iron .
The copper brain coral was made with a graphite cathode that was used in a couple of silver cells. I ran it for about 45 months then shut it down . Please check out earlier video to see how it looked in the beginning .
9 Liters of copper sulphate
240 ml of Sulphuric Acid
One copper brain coral