This is about the third redesign. Wanted something I could go anywhere and be self contained and do a decent days work. Didn't want to bend over because of bad back. This is what I came up with. Two twenty gallon plastic barrels connected with 3 inch pvc pipe (free). An old broken ladder I cut down (free). A Keene sluice that I had laying around with header box attached. I mounted 4 allthread in rim of barrels to mount ladder for frame sluice sits on. Nuts and washers on allthread let me adjust level and pitch for sluice. At the top of the sluice I attached 2 2x4 flared boards to transition from 7 inch upper sluice with slick plate feeding lower sluice. Mats can fit under lip of slick plate and adjustable clamps on side can hold down expanded metal that tucks under slick plate. I have precut miners moss and carpet segments for changing out as often as I need to. A 7 inch sluice with gold hog mat at a more aggresive angle feeds 10 inch, it also has clamps for expanded. It also is mounted on allthread so level and pitch are adjustable. An old kitchen sink with the bottom cut out is mounted at the top of the 7 inch also on allthread. A piece of screen that I scavaged from an air conditioner shroud sits in sink. I cut pvc couplings lengthways to mount on sink for spray bar. Spray bar can snap out to clean or adjust easily. Finally another 7 inch channel is mounted to sink for rock chute for cleaned oversize screened rocks. A 12 volt 2200 GPH Johnson pump circulates water. The material that is fed accummulates in first barrel and a plug on a 4 inch pipe at bottom allows for slurry to be flushed after 4 5 gal. buckets. I refill the pump barrel every two to four refills depending on mud in material I'm running. I have a three hundred gal. water tank in pickup with hose attached so can run 40+ buckets before needing more water. Works well and is light weight and semi-portable. Can use garden hose to refill barrels and run quite a ways from truck as long as you are downhill. Son made a video of us running a few buckets for demo last summer. Will try to post a link if I can figure out how.