SORTING and GRADING - Rainbow Trout
L) -the grader with the proper size (spaced) grate is located over a tank
- a net full of fish is dumped onto the grader
BL) - after the trout are dumped onto the tray, the smaller size falls through into the tank below
BR) - the larger trout that are too big to fall through the slots are dumped into
an adjacent tank (note hinges).