Quote Originally Posted by RobertoMiglioli View Post
And the process is a bit tricky because in some point you need make air bubbles go through the solution and I donīt know how to do it in my Jobo.
Nitrogen bubbles, not air bubbles. They're there to agitate the bath without oxidising it.

Nitrogen is required only for deep-tank processing where it's used to stir the developer up, keep it uniformly mixed and move the exhausted stuff away from the film to be replaced by fresh stuff. The rotary action of the Jobo accomplishes all that so (assuming you can find chemistry) you can stop worrying about bubbles.