TDI - Advanced Trimix Diver Course

This course provides the training required to competently and safely utilise breathing gases containing Helium for dives that require staged decompression, utilising Nitrox and/or Oxygen mixtures during decompression to a maximum depth of 100msw.

This new adventure promises challenges and excitement whilst calling upon all of your previously learnt skills, knowledge and experience. Mixed gas diving, like all decompression diving, results in a "virtual overhead" environment similar to that experienced by cave divers, thus requiring techniques and equipment back-up. Your TDI Instructor will acquaint you with the necessary procedures and techniques whilst demonstrating the proper attitude required at this level.

By the time you enroll in this course you will have been indoctrinated in both the physics and physiology of diving. This course will review all these subjects and further enhance the role that Helium plays in our safe diving process. You will be expected to learn techniques of gas use, solve simple math problems and be responsible for your physical fitness and mental preparedness.

This course is well suited to be undertaken in conjunction with the TDI Advanced Gas Blender course.

What do I need to start?

  • Have a minimum certification as an Extended Range Diver or Trimix Diver (or equivalent).
  • Show proof a minimum of one hundred (100) logged dives with twenty five (25) deeper than one hundred (100) feet/ thirty (30) metres.
  • Be a minimum age of eighteen (18).
  • Prior logged experience w/ double cylinders, stage cylinders and any other equipment to be used on the course. i.e. Dry suit.

The Scuba Doctor Air, Nitrox and Trimix Fills