OC bail out question

ROB DAVIE

Mark,

I think you will find that slinging your bottles on left and right sides will be more efficient, because it will be easier to carry the different sizes you will be needing for different dives.

The Metal Sub idea is great for your supply bottle for your drysuit, however! Those are just really artworks in terms of fit and function, aren't they?

You can, of course, just fit another hose and second stage to your dil bottle regulator, but the problem there is the lack of supply capability from that small bottle. I have one rig that has a seven foot hose stowed inside the case, with an Apeks TX-100 on it clipped to a chest ring, but that is on my Inspiration Expedition, with internal seven-litre tins.

The hot set-up is the BOV with a supply line to a quick disconnect. Then you put a short stub line with a mating disconnect on your sling bottle. No farting around with getting rid of the mouthpiece and finding a new one. You just flip the switch and you are bailed out. Get a few breaths, and figure out WIHIH.

I now have two of the Divematics BOV's, and they are the bees knees (or is it the dog's bollocks)!!! One has the Apeks unit on it, and the other has the Oceanic telephone!

You are really far better off to use a larger but separate supply carried as a sling bottle. You can then use it, or un-sling and hand off if someone else needs it. You can then carry different gas mixes left and right as needed.

Cheers!

Rob

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Steve

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dave t

Yes but you still could have a first stage failure on the offboard gas. I have an OC/DSV and its hooked into my manifold which has the inboard and offboard plugged into it. I still carry another second stage on the offboard

I have done some diving using a BOB/twin rebreather and in my experience you need to go OC in-between the primary rebreather and switching to the secondary


Dave

decoweenie

However, you could swap the first stage u/w between 2 stages.

On the other hand, if you carry a LARGE mix diluent on-board and a stage for OC Nitrox bail-out deco, you can't swap the first stage of the on-board diluent tank as *easily*.

And before anyone asked, yes, I have swapped the first stages u/w... It works fine, except you might need to service the reg afterward depending where you dive (i.e. salt - fresh).

I agree having plumb-in is additional safety!

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Mdemon

For the shallow stuff I did similar to what's been suggested - I swapped the onboard 3li for 6li, now 7li. Bags of O2 but more importantly, bags of dil. If you need to bail to it, the odds of it failing at exactly the same time as the loop seem pretty small to me... (*Edit* For completeness, I started with a sideslung 7li until I got the SS box though.)

For extra bailout shallow, I side-slung - and this could go to my buddy too.

For deeper stuff I just get a small crane to lower me into the water with both the bigger cylinders onboard and sidemounts.



*Edit*
(Caveat: This is how I do it. You do it your way. Don't copy me because I'm an "inexperienced self taught diver [sic]" who scares the crap out of people! I am a NEWBIE, with 2 minutes on the Box and you would be MENTAL to copy me!!!!! No, really, this would be bad, very bad. Please, forget this post ever existed. La la la la la.... You still here?)

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3mViz

You are joking right - you are showing huge amounts of inexperience here - that has the streamlining of a small truck on your back not too mention taking away half the benefits of a Rebreather whilst introducing single points of failure between your RB and a significant portion of your bailout supply.

I bet you none of the serious explorers on the board would dive that heap of shit - what's the betting for them it's a Meg or Ouroboros or Prism or even a stock Inspiration.

Folks before copying something like this go talk to your instructor or at least some one who is trimix qualified - plenty of those on the board.

This type of crap from inexperienced self taught divers scares the shit out of me - people like this who mess with their kit and don't take training are accidents waiting to happen.

*EDIT* Hey you deleted the picture of a truck on your back

Mdemon

Nope! Just making it a bit smaller.

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www.southwestmafia.com

"small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!"

The WRONG Attitude will get you killed.

"Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"

jradomski

There are times when mounting bottles liek shown in the pic work.. I usually dive with normal 3l on the back and sling al40s or al80s, but there are times when I need my chest and sides as free as possible.. In that case I have my rig where I have 7l steels where the 3l normall go and 3l steels between my wing and the 7l steels.. The bailout regs have 2nds with a long hose on each, plus a whip that can be plugged into a loop.The overall foorprint isnt that bad.. You caqn search madmoles or therebreather site for pictures.. I definately prefer sling cylinders and stronmgly discourage "permanently" mounted baliout cyliners because they cant be shared as easily and some uses become limited but sometimes there is a need..

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pchanning

Hi Dave,

Does this means that because the in-board and off-board are linked, a failure in either will compromise the entire supply, or have I missed something - a 1 way valve into the manifold perhaps..??
Why not run the in-board through the ADV to go open loop, and the BOV/ OC/DSV via the outboard, giving true redundancy, bar the DV of course.


More kit. I thought rebreathers we supposed to simplify things

cheers

Paul

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Cheers
Paul

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dave t

No, the stage is plugged into the manifold via a quick release fitting, if I have an onboard dil failure I can unplug and switch to the offboard. I can also add offboard dil to the loop without the manifold connection. If I need to donate gas I can hand off the stage as normal

Dave