building a three stage sluice
triplestage sluice design that has been getting wide ... stage sluice adjustments and familiarized myself ... runners" make it easy to move over protruding rocks... Read more. Keene's 3 Stage Sluice System. 3 Stage Sluice System. Stage 1. 90% of all visible gold is recovered in the ... The ribbed matting is also mounted on a plate making ...