I understand that one of the concerns with generating power from a water tower, allowing the falling water to turn a generator, is that if the water wasn't coming from a natural source, thus having to be pumped back up, that you would use more electricity to power the water pump than you generated. Is that correct? I'm just a dumb old country boy that has absolutely no book learning on physics, so I understand none of the math involved in calculating if this would work or not.
My idea is to weld a skeleton framed tower, 4 feet x 4 feet x 24 feet tall. Then at intervals install 4 feet x 4 feet x 1 foot deep reservoirs. There would be multiple outlets for water on each side of the resevoirs with nipples to direct the flow to each flow's water wheel, for which I would build using bicycle rims, which would be geared to a small generator, but also to do away with the concern of not generating enough electricity to pump water back up could the water pump not be ran by being gear driven from the spinning water wheels.
Is this possible?