TDI Decompression Procedures
The foundation of all deco diving
TDI Decompression Procedures Course
Take the next step into technical diving with the TDI Decompression Procedures course in Phuket, Thailand. This course teaches divers how to safely plan and conduct staged decompression dives using accelerated decompression techniques, multiple gas mixes, and technical diving equipment.
The TDI Decompression Procedures course is widely considered one of the most important foundations in technical diving. It builds the procedural discipline, awareness, and dive planning skills required for deeper and longer dives beyond recreational no-decompression limits.
What Is the TDI Decompression Procedures Course?
The TDI Decompression Procedures course trains divers to conduct planned staged decompression dives to a maximum depth of 45 metres (150 feet) using nitrox and oxygen for accelerated decompression.
Unlike recreational diving, where direct ascents are standard, decompression diving requires:
- precise gas management
- decompression planning
- staged ascent procedures
- emergency contingency planning
- advanced buoyancy and team diving skills
This course develops the ability to safely execute dives involving mandatory decompression stops while managing equipment, gas switches, and team awareness.
Why Take Your Decompression Procedures Course in Phuket?
Phuket offers ideal conditions for technical diver training:
- Warm water year-round
- Boat access to deeper dive sites
- Stable conditions for skill development
- Real decompression diving environments
Training in real-world conditions allows divers to develop confidence and procedural consistency beyond confined water or shallow training sites.
Why the TDI Decompression Procedures Course Is Important
The transition from recreational diving to technical diving is not simply about going deeper.
It is about:
- precision
- discipline
- redundancy
- planning
- problem solving under pressure
The TDI Decompression Procedures course introduces the mindset and procedural approach required for all advanced technical diving, including:
For many divers, this is the course where technical diving truly begins.
What You Will Learn
During the course, you will learn how to safely conduct decompression dives using technical diving procedures and multiple gas mixtures.
Theory Topics Include
- Decompression theory and gas absorption
- Dive planning using tables and software
- Oxygen exposure and CNS tracking
- Accelerated decompression strategies
- Gas switching procedures
- Emergency and bailout planning
- Equipment configuration for decompression diving
- Stress management and situational awareness
- Practical Skills Developed During Training
A major focus of the course is precision and procedural control underwater.
Skills Include
- Advanced buoyancy and trim
- Stage cylinder handling
- Gas switch procedures
- SMB deployment
- Valve shutdown drills
- Team positioning and communication
- Decompression ascent protocols
- Emergency response procedures
- Task loading management
These are the same core skills used in advanced trimix and CCR diving.
Equipment Used During the Course
Students typically train using:
- Twinset or sidemount configuration
- Stage decompression cylinders
- Nitrox and oxygen decompression gases
- Technical harness and wing systems
- Multi-gas dive computers
Technical diving equipment can be provided if required.
Common Challenges New Decompression Divers Face
One of the biggest differences between recreational and technical diving is task loading. New technical divers often struggle with:
- maintaining stable buoyancy during gas switches
- managing multiple cylinders
- awareness under decompression obligations
- ascent discipline and stop control
- communication while task focused
The course is designed to gradually develop these skills through repetitive training and real-world dive execution.
Who Is This Course For?
The TDI Decompression Procedures course is ideal for:
- divers progressing into technical diving
- photographers wanting extended bottom time
- divers preparing for trimix or CCR training
- wreck and cave diving enthusiasts
- experienced nitrox divers seeking deeper knowledge
The AN/DP combined program
The TDI Advanced Nitrox course and TDI Decompression Procedures course can be combined into one program often called AN/DP. The combined program is popular because decompression diving requires advanced gas knowledge, yet relies on the same technical diving fundamentals, making them more effective together.
👉 find out more about our AN/DP Program in phuket
Course Prerequisites
To enrol in the TDI Decompression Procedures course, you must:
- Be at least 18 years old
- Hold a TDI Advanced Nitrox certification or equivalent
- Have a minimum of 25 logged dives
Course Structure
Typical course duration in Phuket:
- Day 1: Theory and workshops
- Day 2: Confined water and skills development
- Day 3–4: Open water decompression dives
Training dives progressively build confidence while maintaining strict technical diving standards.
What Comes After Decompression Procedures?
Completing the TDI Decompression Procedures course opens the door to:
- Extended Range and Trimix diving
- CCR rebreather training
- Helitrox and mixed gas courses
- Cave and expedition diving
This course forms the operational foundation for nearly all advanced technical diving pathways.
Why Choose Us for Your TDI Decompression Procedures Course?
- Experienced technical diving instructors
- Real decompression diving environments in Phuket
- Small group sizes and personalised training
- Progressive skill-focused teaching approach
- Access to advanced technical diving courses and CCR training
Our goal is not simply certification—but developing capable, confident technical divers.
Start Your Technical Diving Journey
If you’re ready to move beyond recreational limits and develop real decompression diving skills, the TDI Decompression Procedures course in Phuket is the next step.
Train in real conditions, develop advanced diving discipline, and build the foundation required for deeper and more demanding technical dives.
Contact Us
Have questions or need help? Use the form to reach out and we will be in touch with you as quickly as possible.