To redirect the flow go underneath the station and use the jump pads to climb it:

Use jump pads to get on top of the station to redirect the flow in Intelligence of the Artificial Persuasion in Borderlands: The Pre-Sequel!

After the first two some enemy jetfighters will spawn. It is easiest to take them out using corrosive damage. Use the nearby jump pad to get to the middle part of the station:

Use jump pads to get on top of the station to redirect the flow in Intelligence of the Artificial Persuasion in Borderlands: The Pre-Sequel!

On top of it is a wheel with which you can redirect the flow.