Quote: (Originally Posted by
PCDiver)
Why minimum?
You ideally want the rig settled in "on setpoint" with the controller holding setpoint during your pre-breathe period on the surface to make sure the thing works, and to have sufficient 02 in the loop to deal with a failure of the controller at the moment you jump into the water (IE the old Inspiration "Battery Bounce" scenario) at a phase of the dive where your task loading is high.
Should likely be more than the setpoint as you make your jump, but at minimum, it should be on surface setpoint (0.7 or so) and fully stabilized and holding that setpoint for at least 3 minutes before you dive. I'd be shocked if anyone was teaching it differently.
Dave
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