Quote Originally Posted by George Papantoniou
What is (I think) important, is to place the exhaust (suction) fan on the wall BEHIND and not the ceiling above the sink (chem. trays), because this way the fumes will not go upwards in their way out (upwards is the way our head usually is, because we bend over the trays).
So directly about the chem trays is not a good idea? Thats how my highschool/college had there's laid out?