That maybe a flaw to my design in avoiding the look of a volcano and wanting as high a water fall as I could get with the bog my water flow is only a about 2" from over flowing the side wall at it's lowest point. when the plants start growing in I am concerned about the water over flowing or backing up. I can cut the water fall damn down more to lower the water level in the bog I hope I don't need to.The water weeps over the wall and down the water fall. The pond never needs care.
Addy you think the water will rise 2" with plant growth?