[Wissa]

We in the pressure group maintain that the short leg of the siphon will stop working then the external pressure is insufficient to push the liquid up to the bend.

So does that mean I can't have a water well more than 33 feet deep?

[Cyber Liberty]

When I lived in a part of the country that required a water well, we had the pump at the bottom of the well to push the water up. I don’t think you can suck the water up that distance, but a well is a special case because the aquifer has different forces at work on it besides atmospheric pressure. There are places in the country where that aquifer is under pressure, and you don’t even need a pump to get the water.

[BitWielder1]

So does that mean I can't have a water well more than 33 feet deep?

Yes you can, but the pump has to be located at the bottom of the well.
My well is 400 feet deep and it works fine.

[UnbelievingScumOnTheOtherSide]

So does that mean I can't have a water well more than 33 feet deep?

You can:

1. Use a bucket and a rope, or

2. Have intermediate reservoirs and multiple pumps at least every 30 feet of height, or

3. Find a spot where their is artesian flow, i.e. one where there is upward pressure in the ground.