Quote: (Originally Posted by
Dave Sutton)
Why not? Gas is gas..... bailout is done for flooded loops... and that does not affect the gas, no matter where carried. The fact of the matter is that much of the "sport diving" done with Rebreather's can be bailed out of using inboard gas only *IF it's all accessable for OC*.
Using a CEJN quick connect hose to the 02 supply, allowing it to be plugged into an OC reg of some sort when needed really expands the matrix of possibilities. Combine that with some *sensible* diluent and you can do a lot with the internal supplies of most rigs. Not "everything", but a lot.
All of my gas is part of my bail plan. I plan to be able to bail out SCC using *any one* of my gas supplies (internal diluent only when diving single dil, *either* of the two diluents only when carrying mix, or using 02 only) and OC using *"one out of two" or "two out of three"* of my gas supplies (either one or two diluents plus 02). Using diluents with enough 02 is the key here... diving deep my "utility gas" (meaning onboard diluent) goes to 50/50 nitrox, while the offboard trimix stays normoxic as long as possible.
02 = life. Carry it mixed, carry it pure, but carry it and be able to ACCESS IT.
Dave
I hope I can debate with you a little.
If your loop is flooded beyond recovery, then SCR is no longer an option and you're dependant on all your OC. This is the only scenario I can think of (so far) where OC access to your O2 would be useful.
In the case of the Meg, the only scenario where access to the O2 is lost is if the inhale side of the loop is lost. Open loop access of O2 remains (by using your inhale man-ad button) even if you sever the exhale side of the loop.
Hence, maybe the probabilities of needing OC accces to O2 are getting a little low in my particular case. Creating that access may introduce more hazard than useful options gained.
I stand to be corrected.