A very easy method for overunity and its the real deal as they say.

[seychelles]

OR THIS ONE .

[seychelles]

And a U TUBE for good measure.
https://www.youtube.com/watch?v=v6bQdlglvM8

[F6FLT]

Except here it flows from the lower level to the higher.
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Only in your mind, not in the real life. Watch the videos.

[F6FLT]

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NEVER GET YOUR EDUCATION FROM YOUTUBE!!!  Unless you are wanting to learn how to make fake videos.

I agree. The height of ignorance can be seen in explanations that take some principles of physics (gravity acting on water, vacuum sucking, pressure...) to conclude that energy is not conserved.

This non-sense is not even a question of physics, but of pure logic and math. Any mechanical system can be described by a Lagrangian which by definition takes energy conservation as an operating principle. This description is fully compatible with a description by forces, weight, speed, pressure and so on, both descriptions are logically related and true or false together. It is therefore absurd to use classical reasoning with forces, weight, speed, gravity, pressure etc. to conclude that there is overunity, it's fake physics and mathematically false. 

The known laws of physics imply the energy conservation for reasons of pure logic and consistency of their internal formalism.
So
- either the known laws of physics apply, then you must suppose or reveal a hidden energy source from which an apparent overunity would originate,
- or the known laws of physics don't apply, and then you can't use them to prove overunity. Instead, you must provide undoubted experimental evidence, and then a new theory will have to be developed.

In the videos, there is no evidence that the outlet is higher than the inlet: end of the scientific analysis, there is no overunity until proof of the contrary.

[telecom]

Only in your mind, not in the real life. Watch the videos.

This is how Toricelli barometer works in real life.
"
The simplest kind of barometer is a tall closed tube standing upside down in a bath of mercury (a dense liquid metal at room temperature) so the liquid rises partly up the tube a bit like it does in a thermometer. We use mercury in barometers because it's more convenient than using water. Water is less dense (less heavy, in effect) than mercury so air pressure will lift a certain volume of water much higher up a tube than the same volume of mercury. In other words, if you use water, you need a really tall tube and your barometer will be so enormous as to be impractical. But if you use mercury, you can get by with a much smaller piece of equipment.
"
https://www.explainthatstuff.com/barometers.html