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build fluid bed sluice 15618 - ecole-ethe-saint-mardbe 36" Prospector Bazooka Gold Trap Sluice Box , out of some scrap wood in my garage This idea is similar in concept to to the New Zealand Hydraulic riffles .
Hydraulic Riffles ? | Gold Dredging Forum Dec 03, 2009· Hydraulic riffles have previously been used successfully on a Production dredge in New Zealand and there is no doubt they greatly aid the difficult recovery of fine gold from New Zealand South Island rivers which all have massive amounts of heavy black sands that will clog conventional riffl
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(DIY) Building a Double Flared Fluid Bed Sluice with 3 , I built this sluice out of some scrap wood in my garage This idea is similar in concept to to the New Zealand Hydraulic riffles, however instead of supplying the water from above like on those, I use the sid 6 water holes per chamber, 3 on each side about 1/8 inch in diameter each
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Hydraulic Riffles ? | Gold Dredging Forum Aug 07, 2010· G'day aucn, When I first read your post in the hydraulic riffles thread that "(I) have put a few videos of a sluice on photobucket" I thought I would be seeing some videos of hydraulic riffles :-) I'm not sure how your test sluice box in ,
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