Hello, and thank you all for the responses. We are attempting to remove the low-quality water from below the thermocline and the siphon would be operating continuously, or until the reservoir level drops ~6 inches. Our problem is the deep spot is 800 feet from the dam and friction loss in the...
We are now looking at running a 10" pipe to the deep spot and reducing the pipe diameter to 4" where it goes over the dam. This seems to work in keeping the velocities/friction loss low in the large pipe and keeping the head required reasonably low.
We are trying to remove hypolimnetic water from a reservoir and discharge the water downstream using a siphon. The problem is the deep spot in the reservoir is 800 feet away. The maximum head downstream is ~20 feet. We were planning on using 4" HDPE pipe but from my calculations, first using...