In my 2 acre pond with deepest part 11 foot and rest averages 4-5 foot, I put all 3 diffusers near each other in the deepest part of the pond. Weighted line is no place to cut corners!! The only way to go in my opinion. I have never turned the pump off except to clean diffusers once a year or so. In deep east Texas where I am I saw no need to eariate the shallow end of my pond. The diffusers in my deep water probably turns my complete pond water at least 2 times a day. Also I used the diffusers where you could add gravel to weight them down . Never had a problem. I think it has been running nonstop for 3-4 years now!! I understand ponds up north freezing and diffusers in shallow ends may have their place for reasons I don't have to deal with here in the south! Good luck and welcome to Pond Boss!!

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