Is heron's fountain an over-unity device at least theoretically?

[buddyboy]

The height from which the water falls to the bottom container is more than the height to which we have to pump
back the water.
Of course the efficiency of the pumps will not allow it to make an over-unity device but at least
theoretical measurements suggest that it gives more energy than input [ not in the 1st cycle]

Am I correct? Can this situation be sorted out??

[buddyboy]

can this defy laws theoretically??

[buddyboy]

The water initially poured in the top container stays there when all of the water from the right container is emptied into the bottom container. By closing
a valve we need not have to pour the water back on to the top container but pump back the water to the right container at a much lower height.
Can this be improvised??