I've had the blue bowl, and after many hour of frustration I went to the CUBE. The engineering and process to use is just way more simple than the Blue Bowl..I went with the 3 stack, but have not seen anything go past the first tray yet. The "Banker" attachment will be my next investment to use stream side. 5 Stars for the Cube. I also have found that depending on the material your running you may or may not want to wet classify. I got into some really "clayee"and "rootie" material and found that even though I maybe didn't have too...That wet classifying and doing a pre-cleaning sure made life easier and kept my water in better condition for a longer period of time. Just my 2c. Good luck. JP

  Hmm, the cube is great for what it does, they sluice now with the screens...But the blue bowl with the water level set properly is awesome. It gets Gold you can't even see until you blow it into a pile with your sucker bottle. And the price is $75 compared to the cube's $400?

http://www.goldprospector...97-bb18-6fa00e1e3c8f

Please click the link to see my set up running back in August.  The CrissonGoldMine.com highbanker attachment is sitting to the left.  I had already run the material through it and was superconcentrating the cons from that run, in the pic, just using the slick plate top and all 3 stacks (only need 1 or 2 carpet (recovery) stacks in my opinion).

Thanks for the reply.
As I recall, the instructions I got with the Blue Bowl stated that with 100 mesh screened material, only go to within 1/2 inch of the top of the Blue
Bowl.  If the material is screened with 50 mesh, then go to within 1/4 inch of the top and if the material is screened with 30 mesh, then go all the
way to the top of the Blue Bowl.

However, if the 30 or 50 mesh screened material contains 100 mesh and finer gold, where does this gold go if you run the water level to the top of the Blue Bowl?  Probably something I should look into, but being cautious, I have had a tendency to only go to the 1/2 inch mark.  That's where I marked the sides of the Blue Bowl so I could 1) level the bowl and 2) make sure I knew where the 1/2 inch mark was without guessing.

Also, being cautious, I don't run all the black sand out, but leave some in, then pan the final bit.  Some of the black sand I have seen here is powder/flour size.

Wayne

I always use the gold cube 4 stack and then pan out by hand which takes way less time than using the blue bowl.  HOWEVER if you know you have an abundance of fines running a couple blue bowls at one time will net you better recovery after using the gold cube.   Both are good tools. I would like to see a triple sized blue bowl then we are talking something that can be used to process better. 

I prefer the Gold Cube any day.  I have used both and IMO there is no comparison.  Not to mention the versatility of the gold cube, where the blue bowl is a one trick wonder.

There is no comparison between the two and as far as I am concerned they were designed for separate purposes.  I owned a Blue Bowl until someone stole it out of the back of my pickup (Thank goodness).  I also own a 4 stacker Gold Cube.  The Blue Bowl is used to separate the gold from the black sand small blond sand once it is refined to that point, like after you run it on through the Gold Cube and screen it down.  I use the Gold Cube to get my material down to the point that I could run it through the Blue Bowl if I still had it.  I live in Colorado and the gold there is mostly fine and too small for the Blue Bowl.  I was told by the manufacturer of the Blue Bowl that is does not get fine gold very well, and from my experience, it doesn't. There are several other superior methods of recovering fine gold.  It does work good for larger gold flakes.  What I use now is the Catch-It-Two water table.  I take my material and run it through the Gold Cube first and then screen it down and spoon it on the Catch-It-Two water table.  The Catch-It-Two water table is slow but you can recover gold so fine that you need a magnifying glass to see it.