- About TEC Diving
- About TEC 40
What is Technical Diving?
Technical scuba diving involves going beyond recreational scuba diving limits and includes one or more of the following:
- Diving beyond 40 metres/130 feet
- Required stage decompression
- Diving in an overhead environment beyond 40 linear metres/130 linear feet of the surface
- Accelerated decompression and/or the use of variable gas mixtures during the dive
- Use of extensive equipment and technologies
In technical diving the surface is often inaccessible in an emergency, so tec divers use extensive procedures, equipment and training to manage the added risks and potential hazards.
Why would I want to be a TEC diver?
Many spectacular, untouched wrecks lie at depths well below 40 metres/130 feet. Deep reefs have organisms you don’t find in the shallows. Some people enjoy the challenge and focus tec diving requires. Still others love being involved with cutting edge technologies. These reasons make tec diving rewarding.
However, you can be an accomplished, avid top-notch diver your entire life without making a tec dive. Tec diving does require significantly more effort, discipline and equipment, which means it’s not for everyone.
What you will learn:
• Review of the benefits and dangers of using oxygen blends in diving
• Calculation and tracking of oxygen exposure
• Narcosis dangers and considerations
• Planning ideal gas blends for different depths to maximize bottom times
• Introduction to the benefits of using nitrox or oxygen as decompression gasses at subsequent dive level
• Logistics and dive planning for a variety of environments
• Common problems related to using a variety of gas blends on a single dive
• Managing emergencies related to the use of different gas blends during a dive
• Explanation of stage bottle configurations and techniques
Skills and Scenarios:
• Air consumption rate observation and calculation
• Gas switching using team protocols
• Lift bag deployment and use
• Refinement of buoyancy and propulsion techniques
• Handling a team member who switches to the wrong gas
• Emergency scenario simulations including (but not limited to): catastrophic gas loss, air sharing during a no-mask, regulator free flows, and more