• Welcome to ScubaBoard


  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

New to rebreather diving

Discussion in 'Rebreather Diving' started by QAQTAT, Aug 3, 2020.

  1. QAQTAT

    QAQTAT QvQ ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: Toronto, ON
    80
    18
    8
    My instructor said I need a T piece for ADV. Does this mean it comes with the unit. Sorry I can’t understand the manuals quite well now:(
     
  2. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    4,440
    5,527
    113
    Huh?!
    It's part of the rebreather!
    Screenshot_20200804-155509_Adobe Acrobat.jpg
    You can see the inline shutoff on the outside of the ADV on the left shoulder (right side of the pic). The ADV is its own T-piece for the inhale side.
     
  3. Madddogggy

    Madddogggy Angel Fish

    # of Dives: I just don't log dives
    Location: Livin Life
    10
    2
    3
    The unit comes stock with the T-piece, ADV and inline shutoff valve on the inhale counter lung side. As well as the T-piece on the exhale CL side.
     
  4. helodriver87

    helodriver87 DIR Practitioner

    # of Dives: 500 - 999
    Location: Alabama
    332
    536
    93
    That's how I was taught. It's bit of a stretch in thick undergarments, but it works. Going left shoulder noticeably low should trigger it though, so you don't even really need to hit the button
     
    bubblemonkey2 likes this.
  5. QAQTAT

    QAQTAT QvQ ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: Toronto, ON
    80
    18
    8
    That means I can save some money:wink:
     
  6. rddvet

    rddvet DIR Practitioner

    # of Dives: 50 - 99
    Location: Florida
    1,236
    1,074
    113
    Why won't they sell a radial scrubber for a mod1 course. Seems silly.
     
    flymolo likes this.
  7. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    4,440
    5,527
    113
    Was told that the duration is past anything I might want to do in my first 50 hours. May have been Wayne's personal position.
    Had I been an established technical diver with enough dives in that arena, I might not have gotten that restriction. Had I pushed it, there might have been a different answer.
    With the added variability in performance with poor packing technique, they may be trying to stay on the safe side.
    I didn't get the impression that it was so they could sell a second can.
     
  8. doctormike

    doctormike ScubaBoard Supporter Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: New York City
    6,595
    6,356
    113
    Just to chime in and provide my 2 PSI, since I LOVE my JJ...

    1) Congratulations to the OP.

    2) If you can afford the NERD, get it. I really like mine, well designed, unobtrusive, lots of non-PO2 information that is helpful to have readily available (compass, deco info, etc..)

    3) I have never had my ADV free flow, in any position. I guess if it did, I could shut off the onboard dil, and feather it a bit if for some reason I wasn't ending the dive and/or I needed to descend to get out (like in a cave).

    4) The ADV button is very easy for me to reach for dil flush.

    5) I haven't found the need for a dil mav, but then again, I don't have an ADV shutoff, so maybe that's it.
     
  9. rjack321

    rjack321 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, WA
    10,170
    4,506
    113
    The axial is fine

    Radial scrubbers are like the "sealed regs" of the CCR universe. Tons of hype and dreams that they are necessary and/or "better"
     
    kensuf, taimen and rsingler like this.
  10. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    4,440
    5,527
    113
    Hey! My sealed pistons really ARE better!
    :gas:
     
    doctormike likes this.

Share This Page