Yes I have been thinking about the bowel for awhile now, even watched a few Youtube Vids, the bowel is cheap or easy to make as a do it yourself project. I believe the bowel is very good at recovering visible gold.
My problem is that the precious metals are more like flour, I have a metallic sheen floating on top of my water, dish soap does nothing to help drop the metal powder while in this fine state. So it looks like an acid proposition.
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