Air Diluent Closed Circuit Rebreather Diver

This is the entry level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 30 metres / 100 feet, using air as a diluent. No decompression diving is allowed on this course.

Student Prerequisites

1. Minimum age 18

2. Provide proof of 20 logged open water dives. If completing a unit crossover, provide proof of 10 logged CCR dives in the last 12 months.

3. Provide proof as a TDI Nitrox Diver or equivalent from agencies recognized by TDI*

Note: Nitrox diver and/or Advanced Nitrox diver may be combined with this course

Course Structure and Duration

Confined Water Execution:
1. Minimum of 60 minutes confined water training to a maximum of 9 metres / 30 feet
Open Water Execution
1. Equipment configuration session, confined water session, and 50 metre fully-equipped CCR diver surface tow must be completed prior to open water training dives
2. Minimum of 420 minutes open water training to be completed over a minimum of 7 dives with a gradual increase in depth each day to a maximum of 30 metres/100 feet
3. The duration of the entire course must take a minimum of 5 days

Training Materials
The following are required for this course:
1. TDI Diving Rebreathers Student Manual
2. Manufacturer’s manual and updates
3. Manufacturer’s Build Checklist
4. TDI CCR Preflight Checklist

Required Equipment
The following equipment is required for each student:
1. A complete closed circuit rebreather . Any modifications to the unit must be approved by the manufacturer
2. Minimum of 1 CCR dive computer, or bottom timer and depth gauge
3. Mask, fins and a suitable line-cutting device
4. Slate and pencil
5. Reel with a minimum of 40 metres / 130 feet of line
6. Lift-bag / delayed surface marker buoy (DSMB) with adequate lift and size for the dive environment
7. Exposure suit appropriate for the open water environment where training will be conducted
8. Access to an oxygen analyzer
9. Appropriate weight
10. Bailout gas supply (and an externally carried redundant air source).

Price: $1500 Not included is gear hire, gas fills, diluent, food, lodging, dive site fees & transportation.