In my view, a pond siphon spillway is a tool to ensure the levee is never overrun with water and the emergency spillway is rarely, if ever utilized. I can appreciate having the inlet as low as reasonably possible to draw brackish water but not at the expense of greatly compromised siphon flow. Am I off base with this assumption?
I think you might be.....
The way I have come to understand it, is that when the inlet pipe is deeper there is more weight of the water itself at that inlet. This weight adds to the force that pushes the water thru the pipe, thus increasing the volume that goes thru the pipe giving better siphon flow.
I think the funky "V" at the outlet side is more of a flow reducer and something to be concerned about.
