Sad SAC

Discussion in 'General Scuba Diving' started by Shoka, Jan 9, 2012.

  1. Doomanic Well-Known Member

    Location:
    Tauchen macht frei
    Here we go;
    [IMG]
    First dives are blue water, then it climbs as I start UK diving and is gradually dropping to more acceptable levels.
    The peaks are a couple of dive I did where I had problems; freeflows and lost buddies in the main.
    Average over 60-odd dives is 21.6, comprehensively ruined by the peaks...
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    Major Clanger P-Plated Meg Diver

    Which one was on my long hose?
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    Shoka Stripy Fish Specialist

    Location:
    Manchester
    You misquote me Major Clanger. Or does the forum not quote quoted material?

    The head banging was in response to Roy's 11.64 SAC in a mix of UK and bluewater diving.

    I'm sure some of you lot have hidden gills.

    In all seriousness, I do not expect it to improve much, I'm not getting any younger, and probably will not suddenly get a lot fitter.

    I'd love to suddenly turn a corner in my diving experience and find my SAC has markedly improved, but the most obvious improvement, leaving the camera behind, has its own frustrations.

    I'm not sure if it is the additional up and down lining up for shots, interruption to my regular breathing as I focus shots, or simply excitement that causes the air burn, but it is obvious from the numbers that there is a strong correlation between my worst SAC values and taking a camera.

    Which leads me to believe that I'm not hiding some hidden stress underwater as my SAC gets worse when I'm nicely distracted.

    I think I'll just have to live with it (and pay for the 15's)

    Cheers Harry
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    Major Clanger P-Plated Meg Diver

    Any attempt to misquote was purely intentional with the desire to raise a smile, somewhere. It's my gift to the forum :)
  2. Doomanic Well-Known Member

    Location:
    Tauchen macht frei
    None of them, it was Si's.
  3. jb2cool Well-Known Member

    Good plan.i wouldn't get too hung up on what you use as you can't really do much about it. If you try skip-breathing to conserve gas you are asking for a CO2 headache or worse and the only other things that will really improve this are breathing exercises, experience and increasing your overall level of fitness.

    Getting a scooter/DPV will also help :)
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    Zubar UKDivers Sponsor

    Location:
    London
    Ok, just done some quick sums (on paper like none of this clever modern stuff).
    Average over 6 dives using start end pressures and max bottom depth (mostly quite square) =13
    Greatest was 18, least 10.
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    Beaker75 UKDivers Sponsor

    I took note of my SAC more yesterday and very pleased to say my rate was approx 15 for the 3 dives.
    Not bad for a big lad lol

    Sent from my iPad using Forum Runner
  4. AaronB Member

    Location:
    Nottingham
    When i first started about 4 years ago i would drain a 12l tank from 200 bar at 6m in 30 mins ...

    Its just a case of being relaxed in the water,

    My SAC hovers around the 16 mark, However this depend on who i dive with

    Most People it stays at 16,

    Some people who i dont feel safe diving with make it jump to close to 30 again ...

    And then thier some people who i dont seem to breath with at all, my last dive i work out to be around the 12 mark, and that was with us finning like buggery to get back as it was feckin cold!

    All i can say is the more relaxed you are the better,

    And the best advice i can give is practise your boyency and sort out the trim if they is any issues with either;

    My SAC litrally halfed over the first trip away i did as i finally managed to crack my boyency and everything just fell into place.

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