notice all the tanks are 500 gallons having equal capacitance for potentials.. if one were smaller it would loose pressure quicker if one were bigger it would maintain pressure longer therefore could never be in sync when discharging simotaniouslty into each other .. pretend the pipe between is the water gap in the cell.. its all about balance of displaced states.. the first one has a turbulent roll from pressure side toward the vacuum side.. the middle is a balanced potential on each side. which i think will create a horizontal high speed cyclone instead of a bunch of turbulent rolls toward the point closes to equilibrium.