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River / Stream Sluices - advice, information and questions
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<blockquote data-quote="limpalot" data-source="post: 230339" data-attributes="member: 5773"><p>I built this sluice with a drop floor; the riffle area is 20 mm lower than the sorting area. The material flows into the riffle area and gravity makes it drop down onto the mat, Bunnings miners moss, the riffles are added to the steel mesh at the same height as the sorting area. 90% of the colour is in the first 100mm of the riffle area. I split the mat in half to see how it is processing things. This works on low flow and up to 50 mm flows. I have narrowed the riffle area to get a better water flow in streams with little to no fall. I classify all material in the sieve, water just hits the bottom of the sieve or I have 1/2 a 4 lt container to scoop water over the sieve.The riffles are sealed with stikaflex so the material has to go up and over . Have a bigger sluice I made first that is now my Highbanker.</p><p>I have had a lot of enjoyment from making and testing these out, hope this helps.</p><p>Cheers LL</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592532_pictures_2015_243-optimized.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592864_p1000342-optimized.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592939_2015-10-26_001_003-optimized.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="limpalot, post: 230339, member: 5773"] I built this sluice with a drop floor; the riffle area is 20 mm lower than the sorting area. The material flows into the riffle area and gravity makes it drop down onto the mat, Bunnings miners moss, the riffles are added to the steel mesh at the same height as the sorting area. 90% of the colour is in the first 100mm of the riffle area. I split the mat in half to see how it is processing things. This works on low flow and up to 50 mm flows. I have narrowed the riffle area to get a better water flow in streams with little to no fall. I classify all material in the sieve, water just hits the bottom of the sieve or I have 1/2 a 4 lt container to scoop water over the sieve.The riffles are sealed with stikaflex so the material has to go up and over . Have a bigger sluice I made first that is now my Highbanker. I have had a lot of enjoyment from making and testing these out, hope this helps. Cheers LL [img]https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592532_pictures_2015_243-optimized.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592864_p1000342-optimized.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/5773/1455592939_2015-10-26_001_003-optimized.jpg[/img] [/QUOTE]
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Gold Prospecting
Prospecting Equipment
River / Stream Sluices - advice, information and questions
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