Get Started: This course provides the necessary skills and knowledge for planning and conducting decompression dives to a maximum depth of 45 m/150 ft. Graduates will be able to utilize back gas mixtures of air/nitrox not exceeding a PO2 of 1.4 ATA and utilize oxygen-enriched mixes up to 100 percent for accelerated decompression. This course meets the prerequisites for NASE xTek 60. Training covers topics such as:
- Decompression models
- Decompression sickness (DCS)
- Decompression dive planning
- Use of enriched oxygen mixtures
- Gas requirements
Training also includes a practical application dive executing decompression dives with one decompression cylinder. Here is a sample video from the course:
Who Can Participate?
- Be at least 18 years old.
- Be certified the NASE xTek Basics and Rescue Diver levels (or equivalent).
- Be able to answer No to all questions on the NASE Medical History form, or secure a physician’s approval for diving prior to the start of the course
What is Involved?
- Self Study: Using a variety of materials.
- Classroom Discussion: Bringing to life what you learn through self study.
- In-Water Training: Students must be able to perform all required skills and log at least 150 minutes of Actual Bottom Time under direct instructor supervision.
What Materials and Equipment Will You Need?
- Mask and fins
- Adequate exposure protection
- Technical or sidemount diving harness and air cell
- Manifolded doubles or two sidemount cylinders
- Two independent regulators with separate first/second stages; at least one with 1.5 m/5.0 ft or longer hose; one SPG for each manifold or valve
- At least one properly configured deco/bailout bottle
- Dive computer or depth gauge and timer
- Dive knife or cutting tool
- Underwater slate or wet notes
- SMB or lift bag with reel or spool
Depending on the dive site and planned activities, it may also be prudent to have items such as audible and visual surface signals. Your instructor may have further equipment requirements in addition to these, such as a primary and backup light for night and deep dives. Your instructor may have additional requirements.