![]() ![]() It works better now than ever before, nice smooth water flow and no clogged riffles. ![]() In my sluice I have a foot of bare metal under the hopper, then 8 inch of Keene Miracle mat, then 16 inch of raised expanded aluminum over carpet and moss and just a few stream riffles. ![]() I would guess 95% under 3/4 inch size went into the sluice. I hardly lost any small pea size gravel and sands out the back like I used to with the grizzly bars. I also squeezed in 4 x 1 inch diameter spray bars so it pounds the gravel better from all 4 sides. It does mean I have to rake rocks out by hand a LOT more, but I won't lose bigger gold or other stuff out the back so much, like coins, copper nuggets, arrowheads, jewelry, etc. I totally got rid of the grizzly bars and put in perforated steel sheet with 3/4 inch square holes. ![]()
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