> As some liquid pulls out and follows the force of gravity; a suction is created, and water molecules that are adhering follow the flow this creates.
That fact that you can siphon a gas shows that "molecules adhering" has nothing to do with it. A fun way to see this for yourself is to put some dry ice in water, then siphon off the CO2. The cold CO2 isn't MUCH heavier than air, so the siphon doesn't flow very fast, but it does flow.
Gravity pulls the fluid out of the low side, creating low pressure in the tube. The higher atmospheric pressure then pushes fluid into that low-pressure tube from the upper reservoir.
> After pressure is reduced by 80%; the substance ceases to be a proper liquid -- in essence, it loses the properties of water.
Which doesn't matter. Try the dry ice CO2 experiment to see for yourself.