diverdoug1
Contributor
If you are a new diver, perhaps you should expend more energy on reading and learning, and less energy on being critical and disappointed. Welcome to Scubaboard newvbie!Newish diver who was looking for real information and can't help but comment on how disappointing it was to read this post be so hijacked by argument that absolutely should have occurred elsewhere
Back to original topic...(I own PP3) I'm about to do LAB with free Nitrox and do not understand why you would change gases underwater??? That seems terribly awkward - you are connecting your tank above, why are you not able to set gas then?