Pond Boss Forums AERATION Systems questions How quickly does aeration take effect?

donf - Cows not only drink from the creek they also "poop" in the creek. Cow manure is rich in nutrients and probably a big source of nutrients feeding your green water. Nutrientrs coming down the stream no doubt fluxuate somewhat. Nutrients will be more prevalent in the incoming stream after the cows have been there and after rains; test then and maybe during low flow for hi and lows if you are interested in knowing the levels. But knowing the levels are elevated will not help solve the problem. It will just tell you that is the main source of your problem, which I think it probably is the stream with its fresh and older cow manure.

The green water occurrence this summer may have a big reductdion affect on the sago pond weed by shading the deeper water thus decreasing underwater rooted plant growth. We will see its affects next year.

I estimate that your pond accumulated about 1" of undigested muck in the "belly" each year. See if you can go out with a brick and rope and measure the maximum water depth. Lets see what the current maximum depth is.