So, I was thinking about how siphons worked today, and no matter how high or low the tube goes, as long as the end is lower than the start, water will flow. So, if you took a hose, ran it up 50 feet, and then back down to the ground, it would seem like water would flow through that.
However, when I performed some calculations, it looked like after going up for ~33 feet (equivalent of 1 atmosphere when you go down), the hose would be at a complete vacuum pressure.
This would mean that the water would boil off, like in space. Alternatively, when you go up more than 33 feet, would you be at negative pressure relative to vacuum? This intuitively and mathematically does not make sense.
So, how can we resolve this discrepancy?