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First rebreather Dive uncomfortable

Discussion in 'Rebreather Diving' started by Rbdive, Nov 26, 2019.

  1. taimen

    taimen ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Europe
    768
    377
    63
    There is none. It is a whole different animal.
     
  2. rjack321

    rjack321 Captain

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, WA
    9,142
    3,052
    113
    None there is no OC weighting that is comparable. You need to have a weight check in the unit you're diving

    There's a variable amount of gas in the loop hose, canister, water traps, etc. All of that takes lead to sink. Then there's the dynamic CL volume.
     
    Rbdive likes this.
  3. AdamSa

    AdamSa Angel Fish

    # of Dives: 200 - 499
    Location: Malta
    12
    3
    3
    From my experience, I found the JJ and my OC twin 12L Faber setup to be very similar buoyancy wise. With both setups I have a steel BP and add no other weight to be comfortable. For single tank diving, i find that my JJ setup is around 6-7KG less bouyant compared to a Steel 12L cylinder (similar to a steel 80 i guess). In other words, going to CC (with steel BP) from a single cylinder, I could shave 7KG of the belt.

    However, i think APs are more buoyant compared to JJ's, so you might not be able to remove that much weight.
     
    Rbdive likes this.
  4. Superlyte27

    Superlyte27 Cave Instructor

    # of Dives: 5,000 - ∞
    Location: Florida
    3,654
    2,670
    113
    Did he say what rebreather and lungs he was using. That would be very telling.

    Most rebreathers I dive are as easy to breathe as I am breathing right now as I sit on the toilet typing this. There are a few crappy ccrs out there and if you set any rebreather up wrong, it'll be hard to breathe. Most side mount rebreathers suck to breathe while you're vertical.
     
    txaggie08, FreeFlyFreak and dsp like this.
  5. Rbdive

    Rbdive Garibaldi

    4
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    AP Inspiration; OTS counterlungs.
     
  6. Superlyte27

    Superlyte27 Cave Instructor

    # of Dives: 5,000 - ∞
    Location: Florida
    3,654
    2,670
    113
    Then it wasn't set up right.
     
  7. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    I use exactly the same amount of lead for my Prism2 CCR and DIR OC setup with steel HP100. But every rebreather is different.
     
  8. reddiver970

    reddiver970 PADI Pro

    # of Dives: I'm a Fish!
    Location: Fort Collins, Colorado, United States
    447
    49
    28
    My first experience I felt the same as you, when you get dialed in it is much more natural than open circuit. At least that's my experience and then when you switch back to open circuit the noise is overwhelming LOL!
     
  9. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    Even when I dive deep (~200') with my OC buddies is much louder underwater comparing diving in CCR only group :poke:
     
  10. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    582
    502
    93
    That's my experience after diving a DH reg for a while and then switching back to a single hose regulator :D
     

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