DIY 7 inch mini highbanker (testing changes)
4,563 views · Published 23 May 2012 · 2:55 · Indexed 9 October 2026
Channel: AstroBouncer · 2012 · Howto & Style
I made some changes to my DIY mini drop riffle highbanker and was testing them out in my back yard. I used my 1 inch 40 gpm gas pump, at either idle, or just above idle. Ran about 1/2 of that 5 gallon bucket of some old low grade concentrates I had sitting around. I set it up for about 2 inches of drop per foot in the bottom sluice because I am running a pretty radical double drop setup on the bottom riffles and they need the extra angle. Top washing area (where you shovel the material) has raised expanded metal over grooved carpeting(most of the gold never makes it out of there), then a 4 mesh grizzly. I lengthened the grizzly so it gives the material more time to both classify and also get washed better (and not lose water off the open end!).
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