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PADI DSAT Trimix Course

PADI Tec RecThe PADI DSAT Tec Trimix course completes your training as a full Trimix Diver. The course refines the skills learned in the Tec Deep Diver course, then expands upon them with knowledge application through sequenced training dives. The dives begin in limited open water with Open water dives follow, progressing from air/enriched air dives to trimix dives.

The dives apply material from previous knowledge development and build upon previous skill development. You will first develop skills independently, then integrate and apply them in simulated trimix dives, and finally apply them in actual trimix dives.

Course Content

  • PADI Tec Rec Trimix CourseMinimum number of dives using EANX and trimix blend:
    • 8 (if entered as PADI Deep/Tec 50 diver)
    • 3 (if entered as Trimix 65 diver)
    • Additional dives may be added at the discretion of the instructor
  • Use decompression software to create custom dive tables and dive plans
  • Make training dives as deep as 90 metres

Course qualifies you to

  • Dive as deep as 90 metres using various trimix blends, air, enriched air and oxygen, using open circuit technical diving equipment and procedures required to manage the risks

The trimix course will also

  • Train you in the cognitive and motor skills required for
    technical trimix diving.
  • Assure you acknowledge and understand the hazards and risks of technical diving in general and trimix diving in particular, as well as the limits of training received in the course.
  • Train you to prepare for and respond to reasonably foreseeable emergencies that may occur in
    this type of technical diving.
  • Provide skills applicable to further training and experience in technical diving.

The technical diving gear you will use

  • Double cylinders with isolator manifold
  • Primary and secondary regulators, one with two metre hose for gas sharing, and one with SPG
  • Stage/decompression cylinders with regulator, SPG, mounting hardware and proper labeling/markings. Two per diver will be required
  • PADI Tec Rec FacilityBackup decompression cylinders
  • BCD and harness
  • Primary and backup depth gauge/computer
  • Primary and backup timing device
  • Primary and backup trimix decompression information (tables/trimix computer)
  • Exposure suit 
  • Weight system (if needed)
  • Jon line (if needed for current diving environments)
  • Inflatable signal tube
  • Reel
  • Lift bag (bright yellow or per local community practice preferred)
  • Cutting device and backup slate, backup mask (optional)
  • Compass, lights (optional)
  • Drift kit (if drift decompressing)

Course Prerequisites

  • PADI Rescue Diver or equivalent
    • If not PADI you need proof of current CPR and First Aid training
  • PADI Tec Deep, Tec 50,or equivalent
    • If not PADI, you must read the PADI Deep Tec Manual and complete the Knowledge Reviews.
  • Minimum of 150 logged dives
  • At least 18 years old
  • Medical signed by your doctor PADI Trimic Crewk Pack

Required Materials

  • DSAT Tec Deep Diver Manual
  • DSAT Tec Trimix Diver Manual
  • TecRec Dive Planning Slate
  • TecRec Dive Planning Checklist slates
  • TecRec Deep Stop Calculation Table slate

Recommended materials

  • PADI Enriched Air Diver Manual
  • Encyclopedia of Recreational Diving (book or CD-ROM)
  • “Oxygen Exposure Management,” by Dr. R. Vann in Proceedings of Rebreather Forum 2.0
  • NOAA Diving Manual, Fourth Edition
  • PADI Divemaster Manual, current edition
  • Computer with trimix capable decompression software

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