open circuit

  1. C

    Ascent rates - normoxic Trimix on OC

    Question for tech divers out there. Consider dive to 65m on 18/45, 15 min bottomtime + descent, with EAN50 and Oxygen as deco gas, all open circuit. What are your ascending rates. I am a bit conflicted between what I was taught, read, etc. Like info 9m per mi up to first deco stop, to some...
  2. davy j0nes

    IANTD Normoxic Trimix and Advanced recreational Trimix O/C & CCR courses

    Davy Jones Locker Koh Tao will be running a series of IANTD courses over 2 weeks in May with Rasmus Dysted conducting the training, the courses will be at user & instructor level and can be done on open circuit or using closed circuit rebreathers. We will be looking to recruit a number of...
  3. davy j0nes

    We need more Tec Divers and Instructors!

    Davy Jones Locker, Koh Tao, is looking to train and recruit a number of Tec Instructors and will be running a series of IANTD o/c and ccr courses in May with Rasmus Dysted conducting the training. If any Tec divers out there would like to expand their skills and take this opportunity to become...
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