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Redundant Air Supply

Discussion in 'Tanks, Valves and Bands' started by asmfish, Apr 13, 2019.

  1. RyanT

    RyanT ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: Maryland
    The 40 cf tank is almost 6" longer than the 30 cf. Both are 5.25" diameter. To the uninitiated, that extra 6" makes the 40 look a lot bigger and more unwieldy than a 30. It's nearly the same length as an AL 80 or an HP 100 that you would have on your back. In reality, 40 is no more difficult to clip on or swim with than a 30. The 19 is definitely a more compact tank being shorter and skinnier than even the 30.

    Here's a link to the dimensions.

    SCUBA | High Pressure Aluminum Gas Cylinders | Composite Cylinders
  2. asmfish

    asmfish Angel Fish

    # of Dives: 50 - 99
    Location: New York

    I did just join you guys!! I actually dove Dutch spring with you the other weekend. You where kind enough to help me with my leaking LP hose. Thank you very much for that again.
    doctormike likes this.
  3. doctormike

    doctormike ScubaBoard Supporter Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: New York City
    Glad to help! Thanks for diving with us... looking forward to the season!
    asmfish likes this.
  4. DanaHunt

    DanaHunt DIR Practitioner

    # of Dives: I just don't log dives
    Location: Watertown, NY
    Operating a charter out of New York myself, I dont disagree with anything that has been said. HOWEVER my personal belief would be to suggest at minimum a 30. I see a lot of rec divers with jacket bcds sling 30-40cf bottles and not looking too haggard. If you have a real harness rig those options are far from cumbersome and the closest to a solution that it gets. My 2.00 cents.
    doctormike likes this.

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