George,
Thanks for the pics!
A couple of questions - I don't see a siphon relief pipe like in Detail "A" of the diagram at
Siphon System , how do you "turn it off".
And, did you not bury the sloped pipes for a reason, other than ease of install? I was thinking of putting a turned up end into the pond as well as on the outlet end, to keep it from sucking up any sludge.
It did, of course, rain here today...
But, just a drop in the bucket, literally!