Advanced Nitrox & Decompression Procedures Course

TDI Advanced Nitrox & Decompression Procedures Course: Your Gateway to Technical Decompression Diving

Ready to extend your bottom times beyond recreational limits and utilize higher oxygen nitrox mixes? The combined TDI Advanced Nitrox and Decompression Procedures course is your comprehensive introduction to the world of planned decompression diving. This program equips you with the skills and knowledge to safely use enriched air nitrox from 21% up to 100% oxygen and conduct decompression dives to a maximum depth of 150 feet (45 meters).

This intensive course is typically conducted over two weekends:

Weekend 1: Foundational Technical Skills

• Gear Configuration: Setting up and managing technical dive equipment (backmount twins or sidemount).
• Dive Planning: Advanced planning techniques, including gas management and contingency planning.
• Team Procedures: Pre-dive checks, bubble checks, descent/ascent protocols, communication (hand/light signals), and situational awareness within a team.
• In-Water Skills: Refining buoyancy control, trim, propulsion techniques (kicks), and calculating SAC rates.
• Emergency Handling: Managing basic underwater equipment emergencies.
• Gas Switching: Proper procedures for switching breathing gases underwater.
• SMB/Lift Bag Deployment: Correctly deploying surface markers and lift bags.

Weekend 2: Decompression Dive Execution

• Advanced Planning: Further dive planning specific to decompression obligations.
• Executing Deco Dives: Conducting planned decompression dives as a team.
• Problem Resolution: Managing potential problems during decompression dives.

Prerequisites:

• Minimum age 18
• Certified Nitrox Diver
• Minimum 25 logged dives
• Current DAN Insurance (or equivalent dive accident insurance)
• Completion of TDI Intro to Tech course, OR SDI Sidemount Specialty, OR documented previous experience diving twin cylinders.

Required Equipment:

• Backmount twin cylinders OR Sidemount cylinders (with appropriate harness/wing BCD)
• AL40 (40 cu ft) cylinder, oxygen clean, with regulator (for decompression gas)
• Two (2) dive computers or bottom timers (or one of each)
• Exposure suit appropriate for cold water diving
• Reel and lift bag or DSMB
• Two (2) cutting devices
• Underwater slate or wetnotes
• Compass
• Two (2) dive lights
• Backup buoyancy device (e.g., drysuit inflation, lift bag, or dual bladder wing)
• Backup mask

Included: Training, Processing Fees, Course Materials

Not Included: Required personal gear, quarry entrance fees, gas fills.

Take the next step in your technical diving journey. Enroll in the TDI Advanced Nitrox & Decompression Procedures course online today!

Key Topics

• Certifications Earned: TDI Advanced Nitrox Diver & TDI Decompression Procedures Diver
• Qualifies Divers To: Use EAN 21% to 100% O2; Conduct planned decompression dives to 150 ft / 45 m.
• Key Skills Covered: Technical gear configuration, advanced dive planning, contingency planning, gas management (SAC rates), gas switching, team diving procedures, buoyancy/trim refinement, SMB/lift bag deployment, executing decompression dives, emergency procedures.
• Course Structure: Two weekends (Weekend 1: Skills Focus, Weekend 2: Deco Dive Execution)
• Prerequisites:
  
  • Min. age 18
  • Nitrox Diver certification
  • 25 logged dives
  • Current DAN Insurance (or equiv.)
  • TDI Intro to Tech OR SDI Sidemount Specialty OR prior twin cylinder experience
• Required Equipment: Full technical setup (Twins/Sidemount, Deco Bottle/Reg, Redundant computers/timers, lights, cutting devices, backup buoyancy/mask, reel/lift bag/DSMB, appropriate exposure protection).
• Included: Training, Processing Fees, Course Materials
• Excluded: Personal Gear, Quarry Fees, Gas Fills
• Outcome: Qualification to perform planned decompression dives within course limits.