I like the idea of the horizontal pipe being higher than the after siphon lake level, but wouldn't the low flow drainage (and most common) state only resume when the water level reached the height of the horizontal pipe (point A) resulting in a pretty wide range in lake levels?
1)Did you build the siphon?
2)How well has it worked?
3) How great a risk is it that the vent inlet at point F got plugged while unattended and the siphon went all the way down to the main inlet level?
Thanks,
David - Dallas
