All this siphon theory has helped me understand something. I'm not bright, at least about this stuff anyways.
I want to ask you siphon brained folks for help. Construction will start soon on Cindy's pond. The contractor has bid on a dual level pond with about a 3 foot difference in the levels. When I first talked to the contractor about two levels I said I was thinking in terms of having two siphons, on at each elevation. What I just realized is that I'm not certain that both siphons can function at different elevations. To maintain the pond at the higher level would require closing off the lower siphon. In that case we lose that volume of drainage. Right? IIRC the contractor included two different sized pipes, perhaps with the smaller one at the lower level with the higher siphon being adequate for the entire pond.
Without rambling on more here's my basic question; how best can we design drainage for a dual level pond?
I really like the idea of a siphon system if feasible.
