Because you can do one of these dives in confined water (such as a swimming pool), many divers start the Tec 40 courses in the winter months, ready to continue in open water when spring arrives.
You’ll learn to:
- Use decompression software and dive computers to plan and make decompression dives with no more than 10 minutes of total decompression and not deeper than 40 metres.
- Use a single cylinder of decompression gas with up to 50 percent oxygen (EANx50) to add conservatism to the required decompression.
The Scuba Gear You’ll Use
You use recreational scuba equipment, with some minor additions to enhance your ability to deal with tec diving conditions.
The Learning Materials You’ll Need
You’ll use the Tec Deep Diver Crew-Pak, which introduces you to
- tec diving lingo
- emergency procedures
- decompression and stage cylinder handling
- gas planning
The pak includes a manual, dive planning checklist and dive planning slate. The optional Equipment Set-up and Key Skills video on DVD is a great tool to help you practice at home in between your tec diving adventures. You’ll continue to use the Tec Deep Diver Crew-Pak through Tec 50.
• Be an Advanced Open Water Diver (or hold a qualifying certification from another organization)
• Be an Enriched Air Diver (or hold a qualifying certification from another organization)
• Be a Deep Diver (or hold a qualifying certification from another organization)
• Have a minimum of 30 logged dives, of which at least 10 dives were made with enriched air nitrox deeper than 18 metres.
• Have a medical form signed by your physician