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Do you check your gas for CO?

Discussion in 'Basic Scuba' started by tna9001, Apr 2, 2021.

Do you check your gas for CO?

  1. Yes

    20 vote(s)
    22.7%
  2. No

    65 vote(s)
    73.9%
  3. What's CO?

    3 vote(s)
    3.4%
  1. BoltSnap

    BoltSnap Dive Charter

    # of Dives: I'm a Fish!
    Location: Nomad
    6,735
    2,796
    I have no problem with your rule.
     
  2. rmssetc

    rmssetc Contributor

    # of Dives: 100 - 199
    Location: Philadelphia
    281
    216
    I'd say the Cootwo is 'fair' in engineering. I'm on my 2nd (3rd, if you include a "firmware" upgrade done by sending it back to the manufacturer and they returned new hardware).

    The sensors and battery can be replaced by anyone who's handy. Recalibrating the CO sensor requires reference gas, so it's a bit of a pain but not impossible.

    1ppm? Isn't that within the range of (normal sensor error + drift as the sensor ages + atmospheric CO)?

    I've seen 5PPM in Aruba -- but only on Nitrox fills, not the air tanks from Clive (Dive Aruba).
     
    BoltSnap likes this.
  3. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,014
    3,858
    I'm not understanding why. He added one more measure of safety and you objected to it? Or was this an additional task he doled out to each passenger?
     
  4. rmssetc

    rmssetc Contributor

    # of Dives: 100 - 199
    Location: Philadelphia
    281
    216
    Ah, understood. Having that many tanks reading 0PPM makes the other tank suspect.

    Given the Cootwo tolerance, that's a good decision.
     
  5. kelemvor

    kelemvor Big Fleshy Monster ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Largo, FL USA
    7,115
    4,180
    I'm working on dumping firmware via manual interface to the EEPROM. Once I've got that done, I've got some service and update instructions I'm hoping to post on iFixit and maybe another site if I can find one that will host an EEPROM image.

    Do you still have the broken one? I'd love to take it off your hands if you do.
     
  6. JimBlay

    JimBlay Divin' Papaw ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: South Florida
    1,608
    2,793
    I replied No ... Never have. I do know what CO is :rofl3:
     
  7. kelemvor

    kelemvor Big Fleshy Monster ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Largo, FL USA
    7,115
    4,180
    Pretty sure CO is short for Colorado; the street name for Marijuana.
     
    Catito, tridacna and BoltSnap like this.
  8. JimBlay

    JimBlay Divin' Papaw ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: South Florida
    1,608
    2,793
    Well yea. I assumed that's what he was referencing. He isn't???
     
    kelemvor and BoltSnap like this.
  9. TMHeimer

    TMHeimer Divemaster

    # of Dives: 500 - 999
    Location: Dartmouth,NS,Canada(Eastern Passage-Atlantic)
    14,764
    4,072
    Agree. An instructor showed a class (and me) how to simply use your cupped hand to see if the gas smelled funny. Of course CO has no smell, so that's irrelevant. I always get fills from known shops in Canada or U.S. Gunna take my chances and not spend the $400 on an analyzer when I could always observe the shop should I be getting Nitrox. Also not spending $700 on an O2 kit, as the shop owner suggested....
     
  10. AfterDark

    AfterDark Solo Diver

    # of Dives: 1,000 - 2,499
    Location: Rhode Island, USA
    10,463
    7,362
    I chose yes but not every tank. I check the quality of the air my compressor is delivering once a year and make sure there is no CO source when I fill my tanks. So yes kinda, but no not every tank.

    After 5 decades and thousands of LDS fills I never had any kind of issue including CO.

    Every dive you live thru is a successful test.
     
    rhwestfall likes this.

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