water tower?

if you had a water tower full of water (manually put there) if it was drained through a device which in turn powered a water pump, would it be enough power to keep the tower full and the water pumping indefinitely?

Quote:

if you had a water tower full of water (manually put there) if it was drained through a device which in turn powered a water pump, would it be enough power to keep the tower full and the water pumping indefinitely?

Impossible? My solution: Has a water tower manually filled with water, uses siphoning to replace water in the tower, can keep siphoning indefinitely(assuming that the river is still flowing), and can even be used to generate power.
In my mind, a siphon is a pump in some since of the word, since it raises water to replace the water that it lets fall.

Watch my lips: (since you missed it before) A syphon cannot raise anything. It only lets it fall.

The "lifting" part of its operation, which is minimal, is in an enclosed pipe (since the atmosphere has to be excluded) and the nett overall effect is a FALL.
What makes a syphon work is GRAVITY, and gravity does not pull things up.

If you don't believe any of this, look up SYPHON in any good encyclopedia.

McTag wrote:

Watch my lips: (since you missed it before) A syphon cannot raise anything. It only lets it fall.

The "lifting" part of its operation, which is minimal, is in an enclosed pipe (since the atmosphere has to be excluded) and the nett overall effect is a FALL.
What makes a syphon work is GRAVITY, and gravity does not pull things up.

If you don't believe any of this, look up SYPHON in any good encyclopedia.

The lifting part is minimal, but it's there. I don't claim to derive any advantage from it. I recognize that the maximum amount of work that can be done is still mgh, but I don't care about the net effect, I care about the fact that at some point in the process, water is raised.

There are instances where a system is semi-self-sustaining.