Skimmer Question part 2

[SerLunchbox]

There is a website, however it is still being built. One pump is for recirc and ther other is for intake.

Not sure on the venturi, but i can find that out easily enough. I agree that it is a HUGE amount of space, the thing i was told is that it also had an auto drain (which seems to be good) as i would need 1" of space of clearance for the removal of the collection cup.