Prism 2 standard procedure upon ascent

[hedgercm]

I dive a unit other than the P2 but dive with other P2 divers. During our last dive one of the divers shut off their dil (via slide switch) upon turning the dive and commencing the ascent. My question is: Is this standard practice? I am not in the business of telling others how to dive their unit but would like to know for my own edification.

 

[davehicks]

Following. This seems nuts. Curious if there is a rationale for this. I assume/hope they had separate inflation gas???

 

[hedgercm]

Following. This seems nuts. Curious if there is a rationale for this. I assume/hope they had separate inflation gas???

Suit gas is separate and wing inflation is separate so just the ability to add Dil to the counter lung was impacted.

 

[rongoodman]

Not something I remember from my training on the unit.

 

[kensuf]

Was he just shutting off the ADV, or all DIL addition?

 

[Dsix36]

Shutting of the ADV before ascent is rather common if diving a hypoxic diluent regardless of what unit is being used.

 

[211ratsbud]

I've heard quite a lot of instruction showing people to disable adv features once on bottom - the rest of it totally uncertain.

I wasn't taught that.