Quote:
| Originally Posted by David Pye <snip>
If anyone could suggest any answers, I'd be interested to hear.
1) Using hypoxic diluents at the surface. How do people do this? The inspiration manual implies that it's not a great idea. So, do people:
Have multiple diluents, and switch between them during descent?
Rely on the controllers to bring the ppO2 up to a safe level
Manually inject O2 to bring the PPO2 up to a safe level
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My unit maintains a PO2 of .4 on the surface so not an issue, if i havent turned the O2 on then my HUD would be alarming.
As regards the CO2 issue have a look at:
http://www.ccrb.co.uk/downloads.html
the rebreather fundamentals paper. I notice you are in Brackhell, if you go to the BSAC club you can always discuss this with Nick Jewison, he'll be more than happy to help.
Ian