Sure!
I built this last weekend in about an hour because I was tired of panning and wanted to speed things up. There are things I will change... next time I'm near a hardware store.
The fluid bed tubes appear to be made from 1/2" PVC on the Sniper so I used a slip-on coupler to attach a length of 1/2" PCV pipe to each. They stay permanently attached to the assembly of pipes that turns the whole thing into a highbanker. I connected the assembly to the fluid bed tubes loosely so it comes apart easily.
The rest of it is a very simplified version of other setups I've seen around the internet, using mostly stuff I already had in my garage. It could be done more efficiently than this, but it accomplishes the task of sending what seems to be ample water through the fluid bed tubes and over the deck.
The valve is unnecessary as it seems to flow enough water to the right places with a 1,000 GPH pump on the Sniper with it wide open. Larger would be better but this does work. Some people use two valves for more adjustability - one for the fluid bed and one for the deck.
The T fitting at the bottom is there because it's all I had, and my tubing fits into it snugly enough. Water flows in through the bottom.
You could build a spray bar for this. I planned to until I used it and found that it works fine as-is for the drywasher concentrates I was running. I plan to add a 45° elbow to the nozzle for the deck, but really, this accomplishes the goal.
Hopefully these photos help. My BGT is a 30" Sniper and it works comically well as a little highbanker, considering there might be $10-15 in PVC stuck to it.
Just wondering, is there one or two fluid beds in the Bazookas?
Thanks
Another update on the recirculating 30" Sniper for those who are interested.
I ran concentrates from 40 buckets of desert material and didn't use the valve this time, but made a few other very minor modifications. Decided to test pan my tailings bucket and was horrified/elated to find a .14 g picker/nugget. (!) Oddly, almost zero fines made it through.
This nugget is the cleanest/shiniest bit of gold I've found so far. It stands out in the vial of coarse pieces from the same location so I wonder if it may have just been locked up in a piece of clay or something. Another possibility is that gold in this particular location is coarse with crystalline structure and no round edges, so it may also be trapping air bubbles. I just thought I should let anyone who might be building a similar setup know that it may not be perfect.
Test pan your tailings bucket until you get it dialed if you're doing this. I'm putting the valve back on an boosting the pressure to the fluid bed next time. There was more than enough water flowing down the deck so it can definitely be redirected down the tubes. The sluice angle was 5.2° (2.75" rise for a 30" sluice).
Totally possible, Kevin! I'm running everything twice now just to be sure. It hasn't happened again. Kinda wish it would, haha.
Gold stuck in your classifier would be a nice problem to have!
Hook up for the mini...we'll see!
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I think I read in another thread that a guy was usin a 1000 gph electric pump.
Yes but that guy is running a Sniper not a Prospector. I'm using a 1200 goh with a Sniper and I wish I had more water on the top deck. For a Prospector you'd need a LOT more!
Well dang, guess I'll have to get a sniper , hard part will be convincing the wife i need another sluice lol. Just curious what type of battery do you use? I was thinking of getting a smaller motorcycle battery since it would be lighter to hike out to places but not sure how long it would last.