You should be careful. When that thing catches the circulator and steals its power the thing will start calling home and next thing you know a bunch of fish eating ETs will show up for dinner. Even worse it might call the pirates to start frequenting your pond for winter experiments. You know they like winter open water in far north ponds . ;\) :p :p

If you are going to use it as a circulator in summer watch your water carefully. From past pics and descriptions you have very good water. You can mess it up. While circulation is great and needed by many -- you may not need it. I suspect it will help but keep a close watch.