First and foremost, Don't give up. I dare say most of the Fatheads and bluegill did not go out of the overflow pipe. I am sure the water is a bit clouded due to the rains and hail. Because of that the fatheads and gills are not visable or near the surface. I had a similar scare on my first try at a drain for my overflow. After a day or two I was able to see the minnows and fish still in the pond.

First before saying how to screen the overflow, what type of overflow do you have? Horiz or vert? Plastic or metal? Size opening? ...etc

With those questions out there, I did add a small mesh screen to my overflow ( window screen mesh size ) I have it on the pond side of the overflow. The problem you get with that is you will have all leaves and anything that floats block or clog the overflow if you don't clean off the screen on a regular basis. I am always out there so I can deal with that and keep it clean. There are many other options to deal with it as well. From check vales to piping configurations. Give us a shout back at what your overflow piping looks like and we can take it from there.


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1/10 - 1/4 acre pond plus 16 ft deep/ Plus 40 ft by 20 ft by 6 ft deep koi and fathead minnow pond next to it. Upstate NY