So I went to husker and dug some dirt. Instead of panning it out in a puddle I decided to take it to a stream and set up my sluice. I have a jobe folding stream sluice. After the painstaking task of setting it up, I thought I had it set up properly. It took 2.5 hours to run 8 gallons of dirt through it. The first and 3rd riffle clogged with every scoop. I saw at least a dozen pieces of gold get trapped in the black mat before the riffles. Then get washed through the box. After cleanup I only recovered 8 total. I'm sure it is not working properly. I was not putting huge amounts of dirt through it at any one time. Is there a proper angle for the riffles to be at?