Someone asked about my siphon pipe. Here is the valve set up. There are two 2" ball valves that allow me to prime the pipe with a pump if I ever need to drain the lake down some. The main pipe is 12" oil well casing. There is a trash screen on the bottom of the main pipe that is built out of 1/4" woven wire mesh with 2" holes in the mesh.
Me and a friend built this siphon set up. It comes on by itself after I tweaked the height of the air vent pipe. If I did the math correctly, it pumps about 4,000 GPM when in full siphon mode. My spillway would not hold up to erosion if it were not for this siphon.
