Tec50

TecRec Course Technical-Diving-Philippines

Tec50 Course Outline

The Tec50 subcourse of the  Tec Deep course introduces Tec45 divers to the first stages of full technical deep decompression diving. Certified Tec50 divers are qualified to make multistop decompression dives using air, EANx and oxygen with up to two gases for accelerated decompression.

The Tec45 diver comes to the course with a strong knowledge and skill base. The Tec50 course extends these, expanding existing skills and with an added emphasis on mission planning and execution.

PADI TecRec Sidemount Tec50 Technical Diving Course Philippines

The pinnacle of the 'Tech Deep' program - Tec50 gives you unlimited decompression with multiple gases

Perfect for -

  • Technical divers seeking extended bottom time up to 50m
  • Unlimited accelerated decompression, >100% O2
  • Use of a two, or more, decompression stage cylinders

Tec50 Course Content -

  • Knowledge Development and exam
  • Practical Applications
  • 4x Open Water Dives (4+ cylinders)

Tec50 Prerequisites -

  • Tec45 Diver, or equivilent
  • 100 Logged Dives (20x EANx 18+m / 15x 30m+)
  • 18 years or over
tec50 technical diving training course subic bay


Course Duration

4 days* with classroom, practical workshops and 4 dives

Day 1 – Classroom theory, equipment workshop and practical applications
Day 2 – Skills training dives 1 – 2
Day 3 – Classroom theory, practical application and technical dive 3
Day 4 – Classroom theory, practical application and technical dive 4

*A 5 day program is recommended if you prefer a more relaxed training program or more time to refine skills.

Pre-study of course materials/completion of knowledge reviews can shorten the course duration. This is highly recommended. You may obtain your own copy of the TecRec ‘Tech Deep’ manual in advance, or I can email handouts/reviews.

The course is performance based, not time based. Performance requirements for each section must be satisfied to allow progression and certification.

Sidemount Technical Diving Courses Philippines


Tec50 Training Dives -

Training Dive One

Environment: Confined water or limited open water
Depths: Minimum: 2.4 metres/8 feet
Maximum 10 metres/30 feet
Decompression: No stop only, five stop simulated decompression
Gases: Air or EANx
Ratios: 6:1

Training Dive Two

Environment: Open water
Depths: Minimum: 12 metres/40 feet
Maximum: 24 metres/80 feet
Decompression: No stop only, 30 minutes simulated decompression
Gases: Air or EANx
Ratios: 4:1

Training Dive Three

Environment: Open Water
Depths: Minimum: 30 metres/100 feet
Maximum: 50 metres/165 feet
Decompression: Decompression dive with two decompression gases
Gases: Air, Air, EANx or oxygen
Ratios: 3:1

Training Dive Four

Environment: Open water
Depths: Minimum: 40 metres/130 feet
Maximum: 50 metres/165 feet
Decompression: Decompression dive with two decompression gases
Gases: Air, EANx or oxygen
Ratios: 3:1


Subic Bay Sidemount Technical Diving Courses Philippines

Be prepared for challenge and adventure!

Tec50 Equipment Requirements -

  • Double cylinders of at least 12 l/70 cf each, with isolator manifold.
  • The isolator manifold is not required for divers using sidemount configuration.
  • Primary and secondary regulators for back mounted double manifolds, one
  • with two metre/seven foot hose for air sharing and one with SPG. Note: In sidemount configuration, one regulator must have the two metre/seven foot hose, and both regulators must have an SPG.
  • 2x Stage/decompression cylinders with regulator and SPG, with proper labels/markings.
  • Tec diving BCD(s) and harness (backmount or sidemount)
  • Two multigas enriched air capable dive computers, or one multigas enriched
  • air computer and a back up single gas computer with dive tables, or one single gas enriched air computer and a backup timer and depth gauge with dive tables.
  • Exposure suit appropriate for environment and dive duration
  • Weight system (if needed). Note: Students and staff should weight for the contingency of decompressing with near-empty primary cylinders and empty or absent stage/deco cylinders.
  • Jon line (as needed for environment)
  • Inflatable signal tube, whistle and/or other visual and audible surface signaling devices. Note that a sausage type DSMB may double for the inflatable signal tube.
  • Reel and lift bag (bright yellow preferred) or DSMB. A suitable DSMB has sufficient buoyancy to help steady a diver during a drifting decompression, and is unlikely to spill when deployed from the underwater.
  • Knife/cutting device and back up
  • Slate or Wetnotes
  • Back up mask (optional)
  • Compass
  • Lights (optional – as required for dive environment)
  • Backup buoyancy control – the student must have a reliable means for controlling buoyancy and maintaining decompression stops in mid-water with a failed primary BCD. This is usually accomplished with a backup BCD (double wings)

Assessment of Technical Dive Training Readiness

In preparation for the course and before beginning open water dive training, there will be an informal assessment of the potential student’s skills and comfort level in water, along with a general assessment dive knowledge. If the potential student appears to lack dive readiness appropriate for the training level, remedial training will be offered before training progresses.

Contact me to discuss your training requirements.

Read/Download PDF Tech Courses Brochure

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