I think that picture is tantalizing. The smile on the foreground will make it impossible to not stop and read the article. The tantalizing white thing in the water behind it will lead to a great opportunity to write up what this air exchanger or lifter or whatever it is and how it helps your pond. I don't think anyone has discussed or shown pictures or diagrams of this. I am not clear on its benefits or in my case with a tiny pond if we had a smaller version of that if it still would do some good. 12" pvc isn't easy to come by here and is pricey. Would a scaled down version work? Tell us more!