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Gold Prospecting
Do It Yourself (DIY) Projects
Wals' Hi-banker Specifications
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<blockquote data-quote="WalnLiz" data-source="post: 102807" data-attributes="member: 147"><p>Ive experimented with countless variations over time, and have found by far the most efficient system is to have nothing under the catwalk (or sloped expanded) at all. The "V" mat under the Catwalk would not work efficiently either as it requires a constant flow over the "V"mat for displacement to occur. </p><p></p><p>Water pressure under the catwalk would be reduced to the point where clogging would definitely occur with finer gravel / black sands, and this would let the gold ride over these sands to the top of the ironstone and work its way down the sluice.</p><p></p><p>If you wish to run a "V" mat system I would use a different riffle system, avoiding the catwalk altogether.</p><p></p><p>Cheers Wal.</p></blockquote><p></p>
[QUOTE="WalnLiz, post: 102807, member: 147"] Ive experimented with countless variations over time, and have found by far the most efficient system is to have nothing under the catwalk (or sloped expanded) at all. The "V" mat under the Catwalk would not work efficiently either as it requires a constant flow over the "V"mat for displacement to occur. Water pressure under the catwalk would be reduced to the point where clogging would definitely occur with finer gravel / black sands, and this would let the gold ride over these sands to the top of the ironstone and work its way down the sluice. If you wish to run a "V" mat system I would use a different riffle system, avoiding the catwalk altogether. Cheers Wal. [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Wals' Hi-banker Specifications
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