Techreational Diver

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Introduction

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The Techreational Diver course is the first step into the UTD technical program.  This course familiarizes divers with the use of Helitrox 25/25 as a breathing gas for depths to 130’/39m with a single decompression bottle containing 100% O2 for accelerated decompression.

Techreational Diver training focuses on team skills, the diver’s bottom skills, and is designed to cultivate, integrate, and test these skills which are essential for safe technical diving.  This critical training will include bottom failures, mid-water failures, problem identification and resolution and building the capacity for progressively more challenging diving.

In this course students will be trained in the use of double cylinders and the potential failure problems associated with them; the use of 100% Oxygen for accelerated decompression, the use of Helium to minimize narcosis; and the applications of single decompression bottle diving with respect to decompression procedures.

This course provides an excellent foundation on which divers can build their technical diving experience in the 130'/39m range using a single decompression bottle.  Later, the diver can then complete Technical 1, which provides a solid basis of critical skills for the technical diver venturing to 160’/48m range utilizing single decompression bottle and optionally a stage to conduct multiple technical dives in one day.

Successful completion of Techreational Diver qualifies a diver to use a normoxic Helium mix of 25/25 and 100% Oxygen for decompression.  The limits for  Techreational Diver are 130’/ 39m and the use of 1 decompression bottle with 100% O2.  Accelerated decompression is limited to one oxygen cycle.

Course Information

The Techreational Diver course is normally conducted over a 5 day period, and cumulatively involves a minimum of 30 hours of instruction, designed to provide a working knowledge of enriched air diving, use of Helitrox and decompression mixtures, and other operational considerations.

Course requirements include eight hours of academics and a minimum of 8 dives, 2 of which are student development dives, 4 of which will be critical skill dives, and 2 will be experience dives.

This course is a decompression course, so divers in this depth range must be aware of the potential for entering into decompression commitments and should be prepared.

Initial training dives will be conducted in shallow water.  The two experience dives are to a maximum depth of 130’/39m breathing 25/25 and using 100% Oxygen for decompression.

Course Limits

  • Maximum depth 130’/39m
  • Standard gases: Nitrox 32, Helitrox 25/25 and 100% Oxygen for decompression
  • 100% Oxygen decompression limited to one single cycle of Oxygen per dive
  • No overhead diving

Requirements

  • Minimum age of 21
  • Must have completed UTD Essentials of Technical Diving and a nitrox endorsement, UTD Recreational 2 with Doubles Mini, or equivalent with assessment
  • Must have at least 75 dives beyond open water certification
  • Must surface-tow a diver in full equipment, in the environment they will be diving, for 10 minutes
  • Must demonstrate a rescue of a diver simulating oxygen toxicity
  • Must complete UTD online registration process
  • Must be able to swim 400 yards / 365m in less than 14 minutes or swim 600 yards / 550m in less than 18 minutes with mask & fins
  • No smoking
  • Use of prescription drugs must be authorized by a physician prior to training

Equipment Requirements

Prior to the commencement of the course, students should consult with a UTD representative to verify equipment requirements.  All participants are responsible for providing all equipment or for making provisions to secure all necessary equipment before the start of the course.

In general, it is better for the student to learn while using their own equipment.  However, students should exercise caution before purchasing new equipment to avoid acquiring substandard or unnecessary equipment.  Please contact us prior to making any purchases.

Sidemount Equipment Requirements

  • Cylinders:  sidemount pluggable double cylinders with appropriate stage rigging and quick disconnects
  • One 40 cuft decompression bottle with necessary stage rigging, primary, and secondary stage regulators
  • Low pressure distribution system such as a Z-Distribution Block or Z-Isolator Manifold
  • Regulator system: primary second stage with a donatable 5’ or 7’ hose stowed in a wrapped fashion around the diver’s neck, and a backup second stage bungeed around the diver’s neck in a necklace fashion
  • Buoyancy compensator/trim device: rear inflation-type/wing or trim device
  • Z-System harness or equivalent
  • Depth-measuring device
  • Time-keeping device
  • Compass
  • Mask
  • Non-split fins
  • Cutting device
  • One primary reel per team with a minimum of 200'/60m of line
  • Exposure suit appropriate for the duration of exposure
  • Spool with minimum 70’/21m line and a surface marker buoy
  • Primary light and backup light
  • Optional:  wetnotes and writing utensil

Backmount Equipment Requirements

  • Cylinders: double cylinders
  • One 40 cuft decompression bottle with necessary stage rigging, primary, and secondary stage regulators
  • Regulator system: primary second stage with a donatable 5’ or 7’ hose stowed in a wrapped fashion around the diver’s neck, and a backup second stage bungeed around the diver’s neck in a necklace fashion
  • Buoyancy compensator/trim device:  rear inflation-type/wing or trim device
  • Backplate and harness system
  • Depth-measuring device
  • Time-keeping device
  • Compass
  • Mask
  • Non-split fins
  • A cutting device
  • One primary reel per team with a minimum of 200'/60m of line
  • Exposure suit appropriate for the duration of exposure
  • Spool with minimum 70’/21m line and a surface marker buoy
  • Primary light and backup light
  • Optional:  wetnotes and writing utensil