I believe if you have the "dynamic adjustment valve" or whatever it is called set very high, the difference when on your back could seem more extreme, perhaps even restricting flow to the point where it feels like you cannot breathe. I tend to have mine set to provide very little resistance, but even then can feel some restriction when upside down. Perhaps you need to have your second stage adjusted a bit.
Oceanic Delta 4 FDX10
- Thread starter toby4408
- Start date
Please register or login
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
- Ability to post and comment on topics and discussions.
- A Free photo gallery to share your dive photos with the world.
- You can make this box go away
shark_tamer
Contributor
When I took my Delta4 reg out for the first dives, I encountered roughly the same " problem ". It stopped delivering air when I was upside down ... ( I really like to look into crevasses and tight places !!! )
I took it back to my LDS and they re-adjusted it NO CHARGE . Never happened again .
I took it back to my LDS and they re-adjusted it NO CHARGE . Never happened again .
Similar threads
