Originally Posted by bborder
The air release is automatic when turning on the leveling system.
The issue is with the hydraulic leveling system, not the air suspension. It has also occurred from day 1 so I'm not sure that moisture in the tanks would've occurred that quickly after manufacture date. Howeve, no I haven't drained them. What would this accomplish? How often should it be done and what is the procedure?
You want to drain any water out of the tank to stop corrosion.
It all depends on your usage and climate. I still would drain tanks at least monthly to make sure you don't have any water buildup in the tanks.
This is just a preventive measure.
Good luck on solving the creaking sounds.