Want to generate electricity with a inline turbine connected to a generator. Got a dam with a 22m damwall with a 200mm valve at the bottom. The waterlevel is 20m. If I connect a cone type of reducer to reduce the outlet to say 50mm and put the turbine somewhere on the line, connected to a 50mm pipe and fit a pipe online to let the water flow back into the dam, generating power 24/7 while not wasting any water. Can this be done by using the force/speed/volume of water to push the water to a higher level. If so what method should be used?