So, I made it home tonight.
I lifted the drains out of the sump so they were just 1/2- 1 " into the sump water level, and restarted the system. It purged the air much quicker. Level in DT did not rise above the overflow box level. No where close to an overflow, at close to 1000 GPH.
Now it's tough getting the level and noise in the DT overflow to stabalize/quiet down. The main syphon seems noisy, like air is trapped in the overflow section Tee.
It must be a residual air purge issue.
Tom
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