PADI Tec 65
The PADI Tec 65 is for you if you’re into technical diving and you know that to extend your depth range you need to use trimix – a blend of helium, oxygen and nitrogen. The Tec 65 course introduces you to using trimix down to a maximum depth of 65 metres/210 feet. There are advantages to using three gases, but you need to know how to do it right.
Divers will be qualified to make multi-stop decompression dives that employ EANx and oxygen for accelerated decompression, and any trimix with an oxygen content of 18% or more. They can also dive to a maximum depth of 65 metres/210 feet. Earning the Tec Trimix 65 certification makes deeper exploration a reality.
What will I do?
The PADI Tec Trimix 65 course is intended to extend the depth range of technical divers already trained and qualified to use air, enriched air and oxygen for technical decompression dives beyond 50 metres /165 feet.
This course is for Tec 50 divers (or those holding a qualifying certification from another training organization). The course extends your depth range capabilities by training you to use trimix (a blend of helium, oxygen and nitrogen).
• Plan and execute at least five dives using EANx and trimix blends
• Use decompression software to create custom dive tables and dive plans
• Make training dives as deep as 65 metres/210 feet
NOTE: You PADI Tec Course includes 4 days of Technical Diver training, materials and gases up to 40%. However as with all training courses, certification has to be earned. Most students will complete the course within the 4 days, however additional training beyond this will be charged on a per day basis.
What scuba gear will I use?
During this course, you will use the following gear:
• Double cylinders (minimum 12 litre/70 cubic feet each, with larger preferred) with isolator manifold
• Primary and secondary regulators, one with two metre/seven foot hose (approximately) 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
• Backup decompression cylinders as appropriate and required for the environment
• BCD and harness – redundant buoyancy control is required (double bladder BCD or dry suit if suitable for weight of equipment worn)
• Depth gauge/computer and backup depth gauge/computer
• Timing device and backup timing device
• Trimix decompression information (tables/trimix computer) and backup decompression information
• Exposure suit appropriate for environment and dive duration. (If you use a dry suit, you should be trained/experienced with its use in recreational and technical diving prior to using it for trimix training or diving.)
• Argon dry suit inflation or other inflation system as needed
• Weight system (if needed)
• Jon line (if needed for current diving environments)
• Inflatable signal tube
• Lift bag (bright yellow or per local community practice preferred)
• Dive knife / cutting device and backup slate, backup mask (optional)
• Compass, lights (optional)
• Drift kit (if drift decompressing)
What are the prerequisites for this course?
You’re qualified to enrol in the Tec Trimix 65 course, if you:
• Are a PADI Tec 50 diver
• Have a minimum of 100 logged dives
• Are at least 18 years old
• Have a Medical Statement signed by a physician within the last 12 months
Note that qualifying certifications from other diver training organisations may apply – ask your Tec Trimix Instructor.
How do I start?
Tec Trimix Diver Crew-Pak which includes all required materials, including: manual, deep stop calculation table, trimix decal and emergency procedures slate.
Topics covered include:
• Trimix diving depth ranges
• Exposure planning
• Selecting a mix
• Argon inflation systems
• Handling three or four decompression cylinders
• Decompression models
• Emergency procedures
• Face masks and multi-gas computers