Pond Boss Forums AERATION Systems questions Aerating a Donut Dugout

The two pictures of the pond are different. Are you reshaping and rebuilding the pond? The water movement from the airlift stream outlet (down stream) will basically circulate a shallow band of water horizontally due to water density; warm being lighter than cooler water. To get deeper water at the stream inlet you will have to extend the air lift tube at an angle deeper into the pond with the air injection at the bottom of the tube. I'm not sure how all the fluid mechanics of this would work. The guy that I know who built a U shaped stream using air lift has died so I can't ask him questions. The water that circulates in the pond according to your arrows would I think be mostly surface oriented moving water maybe only 2 to 4 ft deep and not a full water depth column type of circulation assuming most of the pond is 7-9ft deep.