Tec 45

Course pre-requisites

To start this specialty you´ll need to

• be at least 18 years old
• certified as a PADI Rescue Diver, or have qualifying certifications from another training organisation
• certified as a PADI TEC 40 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 (12 deeper than 18 metres with EANx, 10 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 45 Key Features

45 metres
Full decompression
100% Oxygen (accelerated)
Full twin set configuration
Single decompression gas

PADI TEC 45 Course

from €501

Course Description

The PADI TEC 45 course builds on from the PADI TEC 40 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, accelerating your decompression by using up to 100% Oxygen.

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

The benefit of this course is not only the increase of depth over the TEC 40 course, but that you can now accelerate your decompression, and that the gas planning is no longer as conservative, which allows for more of the back gas to be used for the bottom portion of the dive; planning a dive to 35 metres as a TEC 45 diver could give you up to 30% more bottom time compared to a TEC 40 diver (this is based on an average SAC rate).

We offer this as either a four or five-day course. The four-day course presumes that you are a regular TEC 40 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 40 dives, or who may be coming to the TEC 45 course with no experience of the full technical diving equipment.

Course Content

The PADI TEC 45 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 €501 or alternatively enjoy a fully inclusive diving holiday from just €599 (2 people sharing)

Want to book this course?

TEC 45 Course

The PADI TEC 45 course continues on with the knowledge development from your Tec Deep Diver manual. Within this course you´ll get to look at -

TEC 45 Course• An introduction to the PADI Tec45 course, and how this fits in to the overall PADI Tec course structure
• Equipment used for Technical diving; Exposure suits, cylinders, wing, regulator sets, stage/deco cylinders, DSMB’s, etc.
• Gas planning, gas matching, turn time/pressure and SAC rates
• Emergency decompression procedures
• Switching to a higher oxygen EANx
• How to use desktop decompression software

Included within the manual are three 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 45 course is split into Knowledge Development (which should be completed independently and prior to arrival), three ‘Practical Application’ sessions, and four training dives.

TEC 45 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 (including how to calculate your CNS% and daily OTUs) and how to plan an 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 45 course.

The training dives are split into two skills dives (dives one & two), a simulated decompression dive with skills (dive three), and finally the qualifying technical dive (dive four).

Within dives one and two you will build upon the skills from the TEC 40 course, and be introduced to, and show mastery of, the following skills –

• Proper weighting
• Don and remove deco cylinder at surface
• Bubble check, descent check, S-drill
• Out of gas – use long hose as receiver & donor
• No mask long hose gas sharing
• Stage deco cylinder then retrieve and don
• Gas shutdown drill
• Unresponsive diver tow
• NO TOX switch
• Primary BCD failure, neutral buoyancy with backup system
• Regulator free flow/valve shutdown
• SAC swim constant depth & deco
• Deploy DSMB & secondary DSMB
• Simulate four decompression stops
• Gas shutdown drill neutrally buoyant
• Gas/time/depth awareness

TEC 45 CourseFor dive three we are going to execute the dive you have planned from ‘Practical Application Three’. We will be shallower than planned (making this a No Decompression dive), but the purpose of this dive to ensure that you are able to follow your dive plan, keeping to the time/gas limits, and completing all necessary decompression stops. We’ll also simulate losing your primary source of buoyancy during the decompression stops, and complete the dive on backup buoyancy.

Dive four is the qualifying decompression dive, where we will follow a dive plan from ‘Practical Application Three’. This dive will bring together all of the previously learned skills, and allow you to enjoy your first TEC 45 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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