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  1. #1
    feckface von clownstick BTS's Avatar
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    Full flood recovery at depth

    Myth or magic...

    Someone asked about this in relation to positioning of OPVs on back mounted lungs.

    My thoughts are along the lines off this is what I brought my bail out along for as the physics of forcing water out of an OPV by pumping Dil in at depth suggest this is A. not likely; B. if it is likely it is going to take a long time; C this is what I brought my bail out along for...

    Or am I missing something...
    What to do? I only have three bullets and there are four of motley crew...

  2. #2
    Purine hurts my feet Major Clanger's Avatar
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    Quote Originally Posted by BTS View Post
    Myth or magic...

    Someone asked about this in relation to positioning of OPVs on back mounted lungs.

    My thoughts are along the lines off this is what I brought my bail out along for as the physics of forcing water out of an OPV by pumping Dil in at depth suggest this is A. not likely; B. if it is likely it is going to take a long time; C this is what I brought my bail out along for...

    Or am I missing something...
    Tricky to say for certain. Depends on a number of factors. My view is that I'd give it a go but there's always the bailout if it fails. Success and I either go up or carry on depending on the cause and amount of dil left. Before now at 75 I've plugged my bailout in to the lung to get access to the gas and put it in my loop.
    GaryL

  3. #3
    feckface von clownstick BTS's Avatar
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    By my O level physics reckoning you would need to pump so much gas that you would be all over the place unless you had a handy overhead to pin yourself to, all sounds a little unrealistic in practice....
    What to do? I only have three bullets and there are four of motley crew...

  4. #4
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    Would have thought to fully flood the loop something would have to be pretty wrong with it, hence it would flood again if you did manage to empty it

    Sent from my Nexus 5 using Tapatalk

  5. #5
    Red Hot Totty ;) Hot Totty's Avatar
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    Now if you'd bought a sentinel
    www.wapsac.co.uk
    Apparently becoming a grandad

  6. #6
    feckface von clownstick BTS's Avatar
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    Quote Originally Posted by deepunderground View Post
    Would have thought to fully flood the loop something would have to be pretty wrong with it, hence it would flood again if you did manage to empty it
    That is a very fair and well made point...
    What to do? I only have three bullets and there are four of motley crew...

  7. #7
    Old but keen Mark Chase's Avatar
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    Keeping the flood under control is a good way to protect your cells and electronics

    I have done the dill blast recovery on rear lungs and its fine deep 30m+ I wouldent like to say how it would go shalow


    Yes if its a catastrophic flood it wont make muuch diferance but I have had a few major floods and they were all fairly gradual and just got worse and worse.

    I let my rEvo flood to the point the WOB was too high to be usable and then did a recovery whichworked fine but as soon as I went off horizontal the water trashed the cells

    So for rEvo divers id say recover early and often to preserve the cells. That said I dont know if theres anyt flood recovery on new units without the lower dump

    On my KISS the flood was not recoverable but fortunatly the cells were fine

    Inspos are very easy to recover and will tolerate big amounts of water in the large size lungs.

    JJs easy to blast out but I find it hard to reach the manual ADV button so I do it by mouth

    NBever fulley flooded the JJ but I have blasted out water a few times

  8. #8
    feckface von clownstick BTS's Avatar
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    Where would you put the boarder line between minor, major and catastrophic?

    I have had a gurgle but class that as an annoyance rather than an issue...
    What to do? I only have three bullets and there are four of motley crew...

  9. #9
    Kit Junkie Kermit's Avatar
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    Quote Originally Posted by BTS View Post
    By my O level physics reckoning you would need to pump so much gas that you would be all over the place unless you had a handy overhead to pin yourself to, all sounds a little unrealistic in practice....
    I've done it a few times but I would imagine it all depends on the counterlung volume and your depth. Smaller CLs and greater depth would make it easier. If you are talking about an Inspiration with BMCLs I have exactly zero knowledge or experience with those..
    I'll think of something witty some time soon.

  10. #10
    feckface von clownstick BTS's Avatar
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    Quote Originally Posted by Kermit View Post
    I've done it a few times
    Why did the flood occur in the first place?
    What to do? I only have three bullets and there are four of motley crew...


 
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