I run 1.3PPO2 on the first day on a rebreather and 1.2PPO2 for any subsequent days in a row, no matter the water temps.We always ran our PO2 at 1.3 max for cold water
For cold water conservancy, I choose not to dive below 68F.



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I run 1.3PPO2 on the first day on a rebreather and 1.2PPO2 for any subsequent days in a row, no matter the water temps.We always ran our PO2 at 1.3 max for cold water
I run 1.3PPO2 on the first day on a rebreather and 1.2PPO2 for any subsequent days in a row, no matter the water temps.
For cold water conservancy, I choose not to dive below 68F.![]()
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I despise exposure protection, and caves are about as cold as I want to dive without any. When you're built like a manatee, you get to dive like one. When it's winter time, you'll find us manatee wannabe in the springs with the real deal. Jus' sayin'.
I can't splash with them, but they're allowed to come visit me. A cow once t-boned me while I was in Blue Spring, near Orange City. She cracked a few ribs and surprised the heck out of me as I had no idea she was in the area. She was with the smallest calf I had ever seen, and obviously, she did not want me in the area harshing their mellow. I hid behind a palm tree that had partially fallen into the basin, and when she was looking elsewhere, I slipped down the fissure, which was probably deeper than she wanted to go.Can you dive with them? I had heard that when the manatees where in no divers allowed.
- Do we have any evidence 35/75 is safer than any other setting?
- In an NDL dive does it really matter?
GF Low has no effect on no-stop time. But the GF High of 75 will produce shorter no-stop times and therefore be more conservative than pure Buhlmann 16C.Yes: it controls the no-stop time.
Pretty sure 100days' post was referring to the OPs question number 2 (See below) not the GF setting.Yes: it controls the no-stop time.
The point being that it'd be really hard to get into excessive O2 territory on an NDL dive. Setting to 1.2 would really only potentially have an effect on MOD.2) Setting ppO2 to 1,2 would reduce my max depth and thus my nitrogen and oxygen exposure. Is doing both appropriate or is it (far) too conservative?
Running a PO2 of 1.2 at a given depth is LESS conservative with respect to nitrogen uptake compared to a PO2 of 1.4. Usually you pick a depth because there's something to see there and pick the gas accordingly.2) Setting ppO2 to 1,2 would reduce my max depth and thus my nitrogen and oxygen exposure. Is doing both appropriate or is it (far) too conservative?