love your set up and you can probably clear something up for me. I have a Bean Animal drain. I set it up with the ends of the full siphon and the open channel standpipes submerged in the sump. When re-establishing siphon after the pump is off, the air can be purged from the full siphon. In case of high water level, the open channel will be able to purge the air and become a full siphon. in your set up the drains end up above the sump liquid level. Does the length of pipe create a full siphon in the pipe, due to the length of the vertical, thus not needing to be submerged?
I would appreciate your insight, thanks.