We have a tank full of water. Some rocks and other junk get sucked into the tank and are dropped in from the top. We need to get rid of the rocks over the side of the tank. The tank is about, 8 ft wide X 12 foot long X 7 foot high. At bet conveyors or a screw drive system might work. Also we are in very low temperatures, -30f.
the conveyors motors are hydraulic motors which are located outside the unit
We have concept drawings