Eddie, the pump is much less than 100% efficient as is the turbine and the generator. Some, less than 50% efficient. At each step you lose energy so where does the extra come from? Wishful thinking?
Ok, but wouldn't the gears make up for the loss of efficiency? I could get gears to turn the generators who knows how many more times then the turbine
AND multiple generators??? all with the same pumps, heck even add another turbine ...