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PADI open water max depth

Discussion in 'Basic Scuba Discussions' started by skinerd, Jan 18, 2006.

  1. Darnold9999

    Darnold9999 Solo Diver

    # of Dives: 500 - 999
    Location: Victoria BC Canada
    2,370
    498
    83
    John:

    That's pretty much the longer version of the conversation. But without the discussion of that might be why the tanks are designed to that size.

    I do wish I had kept my old steel tank, but it sat in multiple closets for 15 years and I never used it so I tossed it about 5 years ago. When I tossed it still had pressure in it from the last dive so I suspect it was a perfectly good tank. (I vented the air before tossing it.) Thought I would never dive cold again.
     
  2. John C. Ratliff

    John C. Ratliff Instructor, Scuba

    # of Dives: I'm a Fish!
    Location: Beaverton, Oregon
    2,695
    1,161
    113
    Darnold999,

    I knew you knew the reason for the tank size, but I wanted to go through the calculation so others could see it. Concerning the real reason for standardizing on the 71.2 cubic foot cylinder, this is from Let's Go Diving by Bill Barada, 1962:
    That is one of the more definative sources in the industry.

    SeaRat
     
  3. Darnold9999

    Darnold9999 Solo Diver

    # of Dives: 500 - 999
    Location: Victoria BC Canada
    2,370
    498
    83
    Sorry John, I actually didn't know that. I suspected it, and your answer and subsequent post confirms it. Was thanking you. This writing stuff is hard, conversation is much easier, I can tell when what I say is misunderstood in person when I write the bandwith is too narrow - can't wave my arms about:D draw pictures etc.

    I think it is worth going through the math and even understanding it:11doh: , not sure it is done anymore in basic courses.
     
  4. shelbyj

    shelbyj Garibaldi

    4
    0
    0
    I know this thread is old, but I have some new experiences to attach to the line- the card matters to indoor dive pools in Europe! There is a famous 30-meter deep indoor dive pool in Brussels that has dive police! The water is an attractive, balmy 30 degrees that entices me to visit often in the winter months, but I can never go deeper than 18 meters. My card says "PADI Open Water Diver," and, to the dive pool, that spells out the letter of the law. I suppose there is a reason for this- log books are not standards, so it is my card that counts.
     
  5. kaerius

    kaerius Instructor, Scuba

    # of Dives: 500 - 999
    Location: Sweden
    381
    38
    28
    Easy fix, take some con ed, even a single deep adventure dive gets you a certification depth limit of 30 meters.
     

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