Sounds about right. I loop the rope thru both holes and have the airline already attached to the cabinet. I have someone on shore hold the airline, I pull it tight and hold one end of the rope in each hand. Slowly lowering it down, keeping the botomline tubing tight (boat motor on keeping the boat pulling away from shore). When it's down on the bottom, I let go of one end of the rope and pull it thru the holes and out of the pond. I'll have a 1/4" nylon braided rope attached to the airstation and float a duck decoy for a marker.
Just to clarify what Ted said, the 2 diffusers should be lifting close to 3,200 gpm at that depth.
Last edited by esshup; 08/14/13 09:05 PM. Reason: lifting rate
