Rebreather World - View Single Post - Incident on the surface

Sutty · 28th March 2008, 15:38

If in calm conditions I'm happy to go off the loop and breathe ambient air, knowing that the loop is full of high FO2 gas (and getting higher as O2 os still on on my Kiss). If I Need to be on loop eg bigger sea, then checking PO2 frequently and keep loop volume high by adding O2 whenever it drops at all (not staying at min loop vol).

A separate point at least for the Kiss is that jumping in, or backward roll off a rib sometimes seems to activate the ADV, I presume sudden water pressure against the ADV membrane does it. This can abruptly lower your PO2 especially if using a hypoxic dil, so check as soon as you are in the water even if your loop was full of O2 when you jumped.

Neil

28th March 2008, 15:38	#51 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 800	Re: Incident on the surface - mCCR If in calm conditions I'm happy to go off the loop and breathe ambient air, knowing that the loop is full of high FO2 gas (and getting higher as O2 os still on on my Kiss). If I Need to be on loop eg bigger sea, then checking PO2 frequently and keep loop volume high by adding O2 whenever it drops at all (not staying at min loop vol). A separate point at least for the Kiss is that jumping in, or backward roll off a rib sometimes seems to activate the ADV, I presume sudden water pressure against the ADV membrane does it. This can abruptly lower your PO2 especially if using a hypoxic dil, so check as soon as you are in the water even if your loop was full of O2 when you jumped. Neil __________________ Never forget that life is a finite resource.
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