Be a Technical Diver

The TDI Advanced Nitrox and Decompression Procedures program is your first step to becoming a technical diver. These two courses can be taken as a combination or separately on its own. Here is an explanation of what each course entails

Advanced Nitrox course

This course examines the use of EAN-21 through 100 percent oxygen for optimal mixes to a depth of 40 metres / 130feet. The objective of this course is to train divers in the benefits,hazards and proper procedures for utilizing EAN-21 through 100 percent oxygen for dives not requiring staged decompression.

Advanced Nitrox is also a pre-requisite for rebreather courses. If your ultimate goal is to get certified on a rebreather, you may choose to combine this course with the rebreather training right from the start.

Who this course is for: 

  • The certified nitrox diver looking to expand their understanding of nitrox mixtures containing more than 40% oxygen 
  • The certified nitrox diver looking to expand their in-water skills 
  • The certified diver who has interest in moving forward with technical diving education

What you can expect to learn:

Advanced Nitrox picks up where TDI Nitrox leaves off and offers a more in-depth look at diving with nitrox including: 

  • Physics and physiology relating to diving with gas mixes containing more than 40% oxygen 
  • Gas planning, dive tables, dive computers, oxygen limitations, nitrogen limitations 
  • Equipment considerations, cylinder labelinganalyzing nitrox mixtures, gas blending procedures, and oxygen service ratings for using gases with more than 40% oxygen

Some of the skills you will complete in this course include:

  • Demonstrate buoyancy control; ability to hover at fixed position in water column without moving hands or feet 
  • Show good awareness of buddy and other team members through communication, proximity, and team oriented dive practices 
  • Demonstrate the ability to manage free flow from primary regulator in controlled fashion, shut down cycle, and switch to back up regulator 
  • Conduct appropriate safety stop while maintaining neutral buoyancy 
  • Demonstrate the ability to share air with buddy as both recipient and donor in a controlled manner while maintaining position in the water column 
  • Demonstrate correct body position; appropriate trim, such as horizontal/streamlined when moving forward 
  • Demonstrate proper stress analysis with self and dive buddy

What’s in it for you?

  • Ability to dive using EAN 21 through 100 percent oxygen provided: 
  • The diving activities approximate those of training 
  • The areas of activities approximate those of training 
  • Environmental conditions approximate those of training 
  • Ability to enroll in TDI Decompression Procedures, TDI Semi-closed Rebreather courses, TDI Closed Circuit rebreather courses 

Visit our YouTube page for a full playlist of tech skills.

Decompression Procedures course

This course examines the theory, methods and procedures of planned stage decompression diving.This program is designed as a stand-alone course or it may be taught in conjunction with TDI Advanced Nitrox, Advanced Wreck, or Extended Range Course. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45 metres / 150 feet unless taught in conjunction with the TDI Extended Range Course. The most common equipment requirements, equipment set-up and decompression techniques are presented.

Who this course is for:

  • The certified Advanced Diver looking to expand their knowledge of decompression theory and diving techniques 
  • The certified Advanced Diver who is interested in extending their bottom time 
  • The certified Advanced Diver who has interest in moving forward with technical diving education

What you can expect to learn: 

  • Decompression dive planning including: 
  • 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 finning techniques 
  • Emergency procedures (equipment failures, catastrophic gas loss, omitted decompression, navigational errors, etc.) 
  • Equipment considerations, cylinder labelinganalyzing nitrox mixtures, and gas blending procedures

What’s in it for you?

  • Ability to conduct decompression diving activities without direct supervision provided: 
  • The diving activities approximate those of training 
  • The areas of activities approximate those of training 
  • Environmental conditions approximate those of training 
  • Ability to enroll in TDI Advanced Nitrox, TDI Extended Range, TDI Advanced Wreck, TDI Trimix courses 

Moving on the Open-Circuit courses?

If you are planning for deeper and longer dives on the open-circuit, check out the TDI Helitrox, Trimix or Advanced Trimix courses