PADI Tec 40

This is the type of dive that tec diving — technical deep diving — is all about.It takes you to sites and experiences beyond recreational diving, but for a price. Technical deep diving is more hazardous, and the only way to manage the hazards is thro... Read More

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This is the type of dive that tec diving — technical deep diving — is all about.

It takes you to sites and experiences beyond recreational diving, but for a price. Technical deep diving is more hazardous, and the only way to manage the hazards is through extensive equipment and the extensive training you need to use it.

It requires you to commit to gaining the prerequisite skills and experience, to hours practicing and mastering new skills, and then to applying what you’ve learned strictly, without exception or compromise.

if you find you’re interested in it,

PADI Tec 40 is an entry level technical diving course designed to teach gas switches and extended no decompression diving using air or enriched air up to depths as deep as 40 meters. In this course, you will learn to make decompression stops up to 10 minutes in length and how to prepare for and respond to foreseeable emergencies that may occur in technical diving.

You will learn making dives with planned staged decompression, and for using multiple gas blends on a single dive. You’ll find it one of the most intensive and extensive courses you’ve taken; anything less than your full, serious commitment will not be enough. But, if this type of diving appeals to you, you’ll find it one of the most rewarding experiences you’ll have in diving.

Tec 40 course is where you transition from recreational scuba diving to technical diving. It's a great place to start because it's the first subdivision of the full PADI Tec Diver course and bridges the gap between no stop diving and full technical deep decompression diving. You gain experience and begin building the knowledge and skills you need to continue your tec diver training. You will qualify to make limited decompression dives to 40 meters

Course Prerequisites

Student divers must meet the following training prerequisites before starting the PADI Tec 40 course:

Certified as a PADI Advanced Open Water Diver or qualifying certification from another training organization. For this course, a qualifying certification is proof of training beyond entry level with experience in deep diving and underwater navigation.
Certified as a PADI Enriched Air Diver or qualifying certification from another training organization. For this course, a qualifying certification is proof of training in enriched air nitrox diving with training that includes gas analysis cylinder labeling, oxygen toxicity, oxygen exposure, determining maximum depth limits, and planning enriched air dives with different enriched air blends (not just EAN32 and EAN36).
Certified as a PADI Deep Diver or show proof of at least 10 dives to 30 meters/100 feet.
Minimum age: 18 years.
Have a minimum of 30 logged dives, of which at least 10 dives were made with enriched air nitrox deeper than 18 meters/60 feet.

Tec 40 Equipment Requirements

Any one of the following appropriately labeled and marked options:
- A single cylinder with a dual valve (e.g., H valve or Y valve)
- A single cylinder with single outlet valve and a pony bottle. Pony bottle should have same gas as main cylinder, or be breathable at the deepest planned dive depth. The minimum size cylinder is one with a free gas capacity of 30 cubic feet.
- Back mounted doubles with dual isolator manifold
- Two side mounted cylinders (sidemount configuration)
Two complete regulators, one with a 2 meter/7 foot hose for air sharing and one with SPG. Where two, unmanifolded cylinders are used (sidemount or pony bottle), each regulator must have an SPG, carried and/or marked in such a way as to avoid confusion between them.
Stage/deco cylinder with attachment hardware and a single second stage regulator and SPG.
BCD with D-rings or other attachment points for a stage/deco cylinder.
Two dive computers, or one computer with a backup timer and depth gauge with dive tables.
Exposure suit appropriate for environment and dive duration. If student will use dry suits, they should be trained/experienced in their use in recreational diving prior to using them for Tec training or diving.
Weight system. Students should weight for the contingency of decompressing with near-empty 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 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
Back up mask (optional)
Compass
Lights
Backup buoyancy control. The student must have a reliable means for controlling buoyancy and maintaining decompression stops in midwater with a failed primary BCD. This is usually accomplished with a backup BCD (double wings) or, when using light weight cylinders, the use of a dry suit is permitted.

Required Paperwork

Course Material

PADI Tec Deep Crewpak

Training Dives

Tec 40 Training Dive 1

Environment: Confined water or limited open water with ready access to water shallow enough in which to stand
Minimum Depth: 2.5 meters
Maximum Depth: 10 meters
Decompression: No stop only
Gases: Air, EANx up to EANx50

Tec 40 Training Dive 2

Environment: Open water shallow enough in which to stand
Minimum Depth: 10 meters
Maximum Depth: 18 meters
Decompression: No stop only
Gases: Air, EANx up to EANx50

Tec 40 Training Dive 3

Environment: Open water
Minimum Depth: 15 meters
Maximum Depth: 27 meters
Decompression: No stop only
Gases: Air, EANx up to EANx50

Tec 40 Training Dive 4

Environment: Open water
Minimum Depth: 26 meters
Maximum Depth: 40 meters
Decompression: Up to 10 minutes total decompression time based on breathing bottom gas throughout the dive (no accelerated decompression)
Gases: Air, EANx up to EANx50

Contact us to get your Tec Deep Diver Crew-Pak that includes a PADI Tec Deep Diver Manual, which you can start reading right away. You can also get an Equipment Set-up and Key Skills video, which is a great tool to help you practice skills between your tec diving adventures. You'll continue to use the Tec Deep Diver Crew-Pak through your Tec 45 and Tec 50 courses.