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Advanced Trimix Diver Course

The Advanced Trimix Diver Course is the top level of training for open circuit divers wishing to dive to depths as deep as 330 ft utilizing hypoxic levels of oxygen (below 17 percent). This course is perhaps one of the most informative and challenging of all of the TDI open circuit courses. Upon completion, you will be among some of the most elite divers, capable of doing and seeing more while diving than any other divers out there.

Course prerequisites:
  • Minimum age 18
  • Minimum certification of TDI Extended Range or Trimix Diver or equivalent
  • Show proof of 100 logged dives, 25 must be deeper than 30metres/100feet
What you can expect to learn:
  • Advanced decompression dive planning including:
    • Gas planning based on equivalent narcotic depths, nitrogen and helium absorption and elimination, CNS and OTU limits, isobaric counter diffusion, volume requirements, etc.
    • Use of hypoxic gasses
    • HPNS and isobaric counter diffusion
    • Decompression gas choices
    • Tables vs. personal dive computers
    • Emergency and contingency planning (equipment failure, omitted decompression, etc.)
  • Decompression diving procedures
    • Equipment selection
    • Pre-dive checks and drills
    • Stress analysis and mitigation
    • Following a decompression schedule
    • Gas switching
    • Team awareness and communication
    • SMB/lift bag deployment
  • Proper trim, buoyancy and fining techniques
  • Management of multiple (minimum of 3) decompression/stage cylinders
  • Emergency procedures (equipment failures, catastrophic gas loss, omitted decompression, navigational errors, injured/unconscious diver, etc)
  • Equipment considerations, cylinder labeling, analyzing trimix nitrox and mixes, and gas blending procedures
What’s in it for you?
  • Ability to conduct technical diving activities using custom trimix mixtures without direct supervision, so long as the following limits are adhered to:
    • The diving activities approximate those of training
    • The areas of activities approximate those of training
    • Environmental conditions approximate those of training
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  • Home
    • About
    • Directions
    • Dive Team
    • Water Clean Up Days
    • Staff Only Link
  • On Line store
  • Training
    • Try SCUBA
    • Start here to learn to dive/Open Water Class
    • First Aid / CPR / EAD / Oxygen administration
    • Diver recognition rating >
      • Advanced Adventurer
      • SPECIALTY DIVER
      • Advanced Open water diver
    • Classes to continue your diving knowledge >
      • Nitrox
      • Perfect Buoyancy
      • Navigation
      • Night / Limited Visibility
      • Solo Diver
      • Science of Diving
      • Diver Stress and Rescue
      • Deep Diving
      • Search and Recovery
      • Equipment Techniques
      • Boat Diving
      • Wreck Diving
      • Dry Suit Diving
      • Underwater Photography
      • Waves, Tides, & Currents
      • Shark Ecology
      • Marine Ecology
      • Sea Turtle Ecology
      • Coral Identification
      • Fish Identification
      • Manta Ray Ecology
    • Dive Professional / Dive Leader / Dive Master / Dive Controler / Instructor
    • Tech, CCR and Cave diving >
      • Rebreather CCR and SCR >
        • SCR Training
        • CCR AIR DILUENT DIVER
        • CCR AIR DILUENT DECOMPRESSION PROCEDURES DIVER
      • SSI Extended Range Programs >
        • SSI Extended Range Foundation
        • Cavern Diving
        • Extended Range Nitrox
        • Extended Range
      • TDI Programs >
        • Intro to tech
        • ADVANCED NITROX DIVER
        • DECOMPRESSION PROCEDURES DIVER
        • TRIMIX DIVER
        • ADVANCED TRIMIX DIVER
  • Dive Trips
    • Cozumel Dive Trip April 2023
  • Dive Gear
  • Photo/Video
    • Bonaire
    • Bonaire Videos
    • Coast Photo & Video >
      • NC Coast Photos
      • U701 Video
      • Shark Video
    • Cozumel
    • Florida Photos and Videos >
      • Blue Grotto
      • Florida Photos
    • Red Sea and Egypt
    • Cave Diving Florida
    • Cave Diving Mexico
  • Links