EvilErv Posted February 27, 2011 Share Posted February 27, 2011 Good afternoon everyone, I am new to the forum so forgive me if I slip on protocol. I was wondering if anyone has ever modified an already existing dredge to a three stage sluice. I have discussed with quite a few people at keene about thier 3 stage system and from what I gather the "Main" requirement is the amount of water moved and pump size. Of course the three stage sluice only starts at a 4 inch dredge; however, the 3 inch has the same pump and engine capabilities. Just not the same sluice.I know of the site for building one from the ground up three stage but I am just looking for any upgrading an existing keene. Quote Link to comment Share on other sites More sharing options...
Hoser John Posted March 2, 2011 Share Posted March 2, 2011 3 stage is a convoluted pain in the arse-just go simple over/under and you'll be a much wealthier happy miner. At least 75% of 3 way I've seen are converted back to my simple o/u designs-John--#1 rule a mining is-KISS=KEEP IT SIMPLE AND STUPID-John Quote Link to comment Share on other sites More sharing options...
bcache Posted March 2, 2011 Share Posted March 2, 2011 3 stage is a convoluted pain in the arse-just go simple over/under and you'll be a much wealthier happy miner. At least 75% of 3 way I've seen are converted back to my simple o/u designs-John--#1 rule a mining is-KISS=KEEP IT SIMPLE AND STUPID-John If you are thinking of prospecting on another planet then 3 stages would be useful. Follow John's advice...KISS. Quote Link to comment Share on other sites More sharing options...
EvilErv Posted March 2, 2011 Author Share Posted March 2, 2011 Oh sorry, I thought the new keene three stage was an over and under. At least from what I have seen it is, but then again I could be wrong. It's ok, I just typed in Over/under dredge in google and up popped some sites with ideas. I am definitely going to modify mine though, it should be here tomorrow. Quote Link to comment Share on other sites More sharing options...
Fsbirdhouse Posted March 25, 2011 Share Posted March 25, 2011 Oh sorry, I thought the new keene three stage was an over and under. At least from what I have seen it is, but then again I could be wrong. It's ok, I just typed in Over/under dredge in google and up popped some sites with ideas. I am definitely going to modify mine though, it should be here tomorrow.I am sure they mean just 'one' above the other. Two levels instead of three. Quote Link to comment Share on other sites More sharing options...
El Dorado Posted March 28, 2011 Share Posted March 28, 2011 Newer Keene dredges are over under, but a 3 stage. An over under two stage works very well. I did like my newer keenes, but it took a bit of a learning curve to figure out how to best run the under part for fine gold. The best ever over under was the Keene triple wide sluice design! Quote Link to comment Share on other sites More sharing options...
Fsbirdhouse Posted March 31, 2011 Share Posted March 31, 2011 Newer Keene dredges are over under, but a 3 stage. An over under two stage works very well. I did like my newer keenes, but it took a bit of a learning curve to figure out how to best run the under part for fine gold. The best ever over under was the Keene triple wide sluice design!Did the Keene triple wide ever morph into a flare tube design, or did they all have the old crash box on 'em? Quote Link to comment Share on other sites More sharing options...
Greywolf Posted September 4, 2014 Share Posted September 4, 2014 3 stage is a convoluted pain in the arse-just go simple over/under and you'll be a much wealthier happy miner. At least 75% of 3 way I've seen are converted back to my simple o/u designs-John--#1 rule a mining is-KISS=KEEP IT SIMPLE AND STUPID-John I used a brand new one in Nome last summer, it worked great. Had my partner not run a scam on me and the investors, I would have been back this summer... Quote Link to comment Share on other sites More sharing options...
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