The entry-level tech diver will learn to optimize their gear to avoid drag and dangling objects. This allows for maximum propulsion efficiency and awareness.
TDI is an American tech diving organization that was found in 1994 and has instructors all around the world. The prerequisite to start technical diving with a TDI instructor are the Advanced Open Water certification of any organization, Nitrox certified and a minimum of 25 dives. The first technical diving courses are TDI Sidemount (within No deco limits) and Advanced Nitrox and Decompression Procedures allowing to dive to 45m, using oxygen mixes up to 100% of oxygen and doing staged decompression stops. The course contents include theory, pool work, and a minimum of 6 dives depending on your level of comfort in the water in order to be able to complete all open water requirements safely and efficiently and to understand planning and preparation of a technical dive.
New gear means new techniques. Scuba diving sidemount is easy if you have the right skills.
Divers must maintain a minimum level fitness and health. Some conditions such as chronic illness, recent surgery or medication may make it necessary to obtain written permission before you can dive.
There is a wide variety of equipment that is used by technical divers the biggest impact on the decision is the environment a diver is exposed to. Many cave divers prefer to use Sidemount which means, independent single tanks are mount to the side of the divers’ body and attached by clips on a D-Ring on the waist band on the harness and on the shoulder. This allows the diver to detach and don tanks to fit thru tiny restrictions and have a lower overall profile to go to places unreachable for divers who chose backmount. During multiple trips, additional tanks can be placed in a cave or a wreck to allow the diver deeper penetration dives and to pick up tanks when leaving the cave or wreck.
Sidemount cylinder mounting was first used for cave diving. It has since become more popular in technical diving. They take the dual cylinders apart, one for each, and place them on either side. The diver can't breathe from either cylinder if the regulator fails, but this allows for easier access to valves. Sidemount diving gives the diver an increased horizontal profile and a smaller vertical profile.
How To Become A Sidemount Technical Scuba Diver HarnessYou should not use sidemount in your cave diver training. Our CDS Basics Orientation class is what you need.
After successful completion, the Tech Diver Level 1 can be started and allows a diver to dive to 51m using appropriate Trimix gas mixes beyond 30m. It is also possible to start Cave Diving Training after the Fundamental Tech Pass.
While technical diving is still for fun they aren’t for people wanting to go deeper, just because. There is a higher risk associated with cave and decompression diving. This risk is mitigated, in part, by thorough dive planning and training. As such, divers doing these dives are held towards a higher standard. It will take practice to become a technical diver. No amount of research and reading can supplement that in water time. Divers will notice that the minimum standards are often exceeded during training courses and individual technical instructors often do this. Technical training teaches a diver redundancy so that problems can be successfully solved 1500ft inside a flooded cave and an exit to the surface can be executed. While that sounds complex and scary it’s a necessary aspect of diving in that environment. Technical training is not only challenging but it’s fun and at the end of it the diver has a golden ticket to see parts of the world that are totally closed off to other people.
Skills (general): The introductory tech diver will practice the use of new equipment to trim and control buoyancy. This helps to build the foundation for efficient diving. Once you have a solid foundation, you can start practicing locomotion or move on to more advanced skills.
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Sidemount Diver was one of my most challenging courses. This was due to the fact that my instructor Fiona, from Big Blue Tech, a trusted dive center in Koh Takao, included more skills and dives than I needed. My task load was always manageable so we practiced skills repeatedly. This included mask removable, tank removable underwater, out of air drills, and SMB deployment. We also kept our trim.
PADI Training is available for both Android(tm), and Apple(r), iOS devices. Devices should not be older than three years old and have the latest OS (operating systems).
Becoming a technical diver is equal parts training, experience and passion. If any of the three are lacking the added risks in technical diving aren’t worth it.
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.
2-3 hours
Even with small cylinders, you can usually dive for 2-3 hours (rebreathers typically have two 2/3l cylinders or one 3/5l cylinder).
5-6 days
Rebreather training classes are typically 5-6 days long, but can be longer depending on a variety of factors such as the training agency, your local conditions, your instructor, and your ability to meet the class standards.