So a couple of questions I have. Are not needle wheel pumps also utilizing a venturi to draw in air (yes) ? What is ground breaking about plumbing the air line into the collection cup? Could you not do the exact same thing with any skimmer? Would work the same to shut down airflow if water level in cup reached the air intake. Not going to make bubbles if you are sucking in water. I think there is a reason they don't do that as it sucks crap into the hose and will clog it within a short period. Perhaps the Lifereef has more suction and would maybe tend to clear clogs? Like a vacuum flush toilet maybe. Seems dubious. The fact that nobody else is following in their footsteps is odd. If it was the hot ticket everyone else would jump all over it.