Keene 151S Boxes in GOLD PROSPECTING Posted May 17, 2019 34 minutes ago, boulder dash said: how is your recovery % wise? I complete the 5-bank drywasher last summer and had the opportunity to give it a test run for about 10 hours of loading time with a front end loader. Unfortunately that was the end of my seasons test as my 11,000 watt generators motor went bad along with a few other modification I had to do to the drywasher , I had to pull out of the area and get my new generator repaired thankfully it was under warranty..and do so more mods. As far as the recovery % its hard to say...but the boxes did recover very fine gold and of course the more coarse pieces also. The area I did the test run was very close to the source so the gold itself is larger ..if I were to go more downstream I would have recovered more fine gold that has broken down rather than the large coarse pieces. Hopefully this season I will get more hours on the drywasher and do more testing to get it dialed in just right.