It's probably not based in fact or logic and I am no expert, but I wouldn't want anything electric in my water full-time. Over time is that sump pump going to slowly deteriorate from elements and/or critters? I know pond fountains probably all have electric, but to me fountains are mostly used in water that you look at, not water you are in. I suppose water parks have them too..but I just get nervous about electricity running in the pond I am fishing/swimming in with family, friends, and children. I had an employee electrocuted one Saturday morning in a small pond because ants had chewed thru some wiring. It was such a tragedy. I guess a GFI plug would certainly help. Let us know how it goes....

Fishing has never been about the fish....