Dec 15, 2018· Dredge? Commercial Op? Other details can be critical as well. Example: if a dredge… crash box or flare? 2) Post the water ENERGY info. Sluice WIDTH and gallons per inch running through the sluice. Just posting your PUMP gph is not often enough. 3) Post any other info that might be helpful. Such as problems that currently exist with your system.