Tec 50

Course pre-requisites

To start this specialty you´ll need to

• be at least 18 years old
• certified as a PADI TEC 45 diver, or have qualifying certifications from another training organisation
• have a current copy of the Tec Deep Diver manual
• have a minimum of 50 logged dives (20 deeper than 18 metres with EANx, 15 deeper than 30 metres)
• have dived within the last three months and feel confident in your assembly and use of SCUBA equipment, along with accurate buoyancy control. If in any doubt, then please contact us
• have a medical statement completed and signed by your doctor (download here)
• agree and sign the Liability Release and Assumption of Risk for Technical Diving (download here)
• agree and sign the Tec Diver Statement of Understanding and Learning Agreement (download here)
• agree to our course terms and conditions (download here)

TEC 50 Key Features

50 metres
Full decompression
100% Oxygen (accelerated)
Full twin set configuration
Two decompression gases

PADI TEC 50 Course

from €589

Course Description

The PADI TEC 50 course builds on from the PADI TEC 45 course, and introduces you to the first stages of full, technical deep decompression diving. Upon completion of the course you’ll be qualified to make multistop decompression dives, using air, EANx and Oxygen, with up to two gases for accelerated decompression. 

The course will introduce you to the equipment used for Technical Diving, the emergency skills and procedures required, and how to plan your multistop decompression dive, along with the correct selection of breathing gases.

The benefit of this course is that now two decompression gases can be carried with you underwater, which allows for a quicker decompression. We still use the gas planning parameters from the TEC 45 course, so this step up should still feel comfortable to you. And with the skills acquired for handling two deco cylinders, you’re now ready to consider enrolling on to the PADI Trimix 65 course. 

We offer this as either a four or five-day course. The four-day course presumes that you are a regular TEC 45 diver, familiar with the technical dive equipment and fluent in using desktop decompression software. The five-day course are for those who have completed fewer TEC 45 dives, or for those who would prefer a more relaxed course.

Course Content

The PADI TEC 50 course includes everything you´ll need. We´ll supply you with –

• Full equipment for technical diving including wetsuit, twin bladder wing, harness and back plate, dual regulator set, multi gas computer and backup computer, twin set cylinders, decompression cylinder, hood, gloves, boots, fins, mask and weight system
• All gases, including nitrox for backgas and deco gases
• Primary dive torch, cutting tool, DSMB & reel, wetnotes, and compass.
• Certification upon successful completion
And remember that on this course there will never be more than three students!

You can book this course from €589 or alternatively enjoy a fully inclusive diving holiday from just €664 (2 people sharing)

Want to book this course?

TEC 50 Course

The PADI TEC 50 course continues on with the knowledge development from your Tec Deep Diver manual. Within this course you´ll get to look at –-

TEC 50 Course• An introduction to the PADI Tec50 course, and how this fits in to the overall PADI Tec course structure
• Unresponsive diver at depth
• Decompression Illness
• Gas planning, gas matching, turn time/pressure and SAC rates

Included within the manual are two Knowledge Development sections that you´ll need to complete, and are designed to help you better understand and retain the information.

Course Overview

The TEC 50 course is split into Knowledge Development (which should be completed independently and prior to arrival), three ‘Practical Application’ sessions, and four training dives.

TEC 50 CourseThe ‘Practical Application’ sessions are designed to help you familiarise yourself with the equipment you’ll be using, ensuring you are reasonably confident in its assembly, and to ensure that you have a much deeper understanding of gas planning that now includes an additional decompression gas (including how to calculate your CNS% and daily OTUs) and how to plan a multistop accelerated decompression dive. At the end of these sessions you should be fluent in both equipment assembly and how to plan a technical decompression dive, within the limits of the TEC 50 course.

The training dives are split into two skills dives (dives one & two). Dive three and four are actual decompression dives, where we’ll execute both accelerated and non-accelerated decompression schedules. Dive four is the qualifying dive for the course.

Within dives one and two you will build upon the skills from the TEC 45 course, and be introduced to, and show mastery of, the following skills –

Proper weighting
• Don and remove two deco cylinders at surface
• Bubble check, descent check, S-drill
• Gas shutdown
• Neutrally buoyant gas shutdown
• Retrieve and don deco cylinders, stationary and on the fly
• NO TOX switches at simulated stop depth
• Team mate breathing wrong gas drill
• SAC swim
• Catastrophic gas loss
• Simulated five stop decompression with NO TOX switch
• Gas/time/depth awareness

TEC 50 CourseFor dive three we are going to execute the dive you have planned from ‘Practical Application Three’. This will be an actual decompression dive, utilising our two deco gases for added conservatism only.

Dive four is the qualifying decompression dive, where we will follow a dive plan from ‘Practical Application Three’. We will use the deco gases to accelerate our decompression and now we’ll bring together all of the previously learned skills, and allow you to enjoy your first TEC 50 technical dive!


What other courses can you link in, and achieve greater enjoyment and safety under the water? As a qualified technical diver nothing can replace the experience you’ll obtain from just diving! Why not book onto one of our guided technical diving days, and continue your diving under the watchful eye of your instructor?

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