I just installed a system (big max off ebay)
It has 2 rings for diffusors and it seems to really putout the fine bubbles, our pond is approx. 1/4 acre maybe 8-9ft deep in a forest area so we have many years of leaves on bottom, no way to clean them out.
previous owners tried stocking fish but they didn't make the Wisconsin winter so hopefully now they do.
I don't think you can over aerate but I can tell you of a story.
My uncle had a tropical fish business raising fresh water angle fish. When I went to collage I was able to live with him to save some cash but had to work in his fish room. I had to clean five pair of breeder tanks every day so I could keep up. I would wipe down the algae and change 30% of the water. The tanks had a constant flow in and out but needed the bottoms cleaned out. Long story but when filling you had to fill slow with the valve that would be the source of the constant in flow. If you filled it fast and just let it go it would over aerate the water and the fish would basically hyperventilate on air.
I regret it to this day that I killed 5 pair of black marble lace angle fish. I was in a hurry to get home to my girl (my wife now). I cleaned the tanks got the water going fast to refill. Thought I would load my car up and pack up for the weekend. Got the car packed locked up the house and left. Completely forgot to turn the water back. My uncle calls me later that night at home..... Oh was I mad at my self. I felt so bad and there was nothing I could do to make it better. They were a young new pairs that took two years to raise and pair up.
Sooo yes you can over aerate but I think it would be difficult with a pond. I think it was Bill that gave me a rule of thumb that if your rocks in the water have bubbles on them cut back the hours you run the aeration. Your wasting hydro and energy.
Cheers Don.
The biggest negative to over-aerating is turbid water due to too strong of water circulation /currents similar to aeration at a sewage treatment plant keeping organics continually in suspension.
Hey Ridge,
Keep in mind that for winter aeration you don't want a diffuser running in the deepest water of your pond or you stand the risk of "super chilling" the water and killing the fish. For winter aeration in a pond your size you need to run only one diffuser in water roughly 1/3 the depth of your deepest water. FWIW our pond is only a little larger than yours and, to save electricity, I only run my shallow water winter diffuser when we get significant snow cover. This opens up an area to allow sunlight to the pond so the vegetation can produce oxygen. IMHO you could put the compressor on a timer and let it run everyday though without hurting anything.
Well I will chime in here. I read on PB a year,2 maybe 3 ago that one can over aerate, I think. I would do a search and I think the posts had pics of bubbles in the fins of the fish, I Believe. I wish I had a better memory.
I would assume it is difficult to make happen, but a possibility I think.
I bet Bill D. hit the most important part, since you live in WI and have significant freeze over. IMHO
We were planning on moving the diffusers to the side by the floating dock i hanen't built her to keep water open and keep barrels from getting froze to hard