
Padi Tec Courses
Tec Sidemount

Wearing more than one tank has become increasingly popular for technical diving. With the Tec Sidemount Diver course you can apply what you learn to other TecRec courses.
Description
If you’ve looked into technical diving, you realize that tec divers always wear more than one tank. Sidemount is an increasingly popular way to configure multiple cylinders for technical diving. You can enter the world of tec diving with the Tec Sidemount Diver course and apply what you learn to other TecRec courses. Your instructor may offer to integrate this course with the Tec 40, Tec 45 or Tec 50 courses.
If you’re a PADI Advanced Open Water Diver, at least 18 years old and have a minimum of 30 logged dives, you qualify to enroll in a Tec Sidemount Diver course. It’s recommended that you also have a PADI Enriched Air Diver certification.
Note that qualifying certifications from other diver training organizations may apply – ask your Tec Sidemount Instructor.
Academic
You’ll learn about the advantages of diving with a sidemount configuration and how to set up a tec sidemount harness. You’ll get hands-on training during one confined water session and four open water dives where you’ll start with two tanks and add at least two more, maybe even getting to six sidemounted cylinders.
Getting Started
Get the PADI Sidemount Diver and Tec Sidemount Diver Manual from us and start studying immediately.

Tec Trimix 65

Extend your depth range the right way with a blend of helium, oxygen & nitrogen (trimix). The Tec Trimix 65 course introduces you to using trimix down to a maximum depth of 65 metres/210 feet.
Description
If you’re into technical diving then you know that to extend your depth range you need to use trimix – a blend of helium, oxygen and nitrogen. The Tec Trimix 65 course introduces you to using trimix down to a maximum depth of 65 metres/210 feet. There are advantages to using three gases, but you need to know how to do it right. Earning the Tec Trimix 65 certification makes deeper exploration a reality.
You’re qualified to enroll in the Tec Trimix 65 course, if you:
- Are a PADI Tec 50 diver
- Have a minimum of 100 logged dives
- Are at least 18 years old
- Have a Medical Statement signed by a physician within the last 12 months
Note that qualifying certifications from other diver training organizations may apply – ask your Tec Trimix Instructor.
Academic
Tec Trimix 65 course topics include:
- Trimix diving depth ranges
- Exposure planning
- Selecting a mix
- Argon inflation systems
- Handling three or four decompression cylinders
- Decompression models
- Emergency procedures
- Decompression software and multi-gas computers
Equipment
You’ll use full technical equipment and you may use a technical sidemount configuration, plus two stage/decompression cylinders. Your Tec Trimix Instructor may suggest other equipment.
Tec Trimix Diver

This course turns experienced tec divers into extreme divers. During this course, you’ll make dives as deep as 90 metres/300 feet, use multigas trimix computers, & handle up to 4 stage/deco cylinders.
Description
Ready for the outer edge of technical diving? The Tec Trimix Diver course takes experienced tec divers and turns them into extreme divers who go deeper and visit pristine sites where few others will ever go. During the course, you’ll make dives as deep as 90 metres/300 feet, but once you earn this tough certification, there are few limits. Your training teaches you to build experience gradually and you do it because you’ve made it this far and have more exploring to do.
To enroll in the Tec Trimix Diver course, you must:
- Be a PADI Tec 50 diver or Tec Trimix 65 diver
- Have a minimum of 150 logged dives
- Are at least 18 years old
- Have a Medical Statement signed by a physician within the last 12 months
Note that qualifying certifications from other diver training organizations may apply – ask your Tec Trimix Instructor.
Academic
The Tec Trimix Diver course emphasizes mission application:
- Gas selection options, especially deco gases
- Bubble models and deep stops
- Using multigas trimix computers
- Handling up to four stage/deco cylinders
Equipment
You’ll use full technical equipment, including more than two stage/deco cylinders, and you may use a technical sidemount configuration. Your Tec Trimix Instructor may suggest additional gear.
Getting Started
Your Tec Trimix Diver Crew-Pak includes a PADI Tec Trimix Diver Manual, which you can start reading right away.
Tec Gas Blender
Being a gas blender is a key job at a busy PADI Dive Center or Resort. This course teaches you how to blend enriched air nitrox and helium-based gases using one or more blending methods.
Description
The PADI Enriched Air Diver course is the most popular diver specialty course and the number of technical divers is on the rise, which means that lots of scuba divers want enriched air and gas blends. The Tec Gas Blender course teaches you to blend enriched air nitrox and helium-blend gases using one or more blending methods. Being the blender is a key job at a busy PADI Dive Center or Resort and your work allows other divers to do what they love to do scuba dive.
If you’re aPADI Enriched Air Diver and are at least 18 years old, you can enroll in a Tec Gas Blender course.
Note that qualifying certifications from other diver training organizations may apply – ask your Tec Gas Blender Instructor.
Academic
The Tec Gas Blender course includes three practical application sessions, but no dives. During independent study and instructor-led review, you learn:
- About the advantages and disadvantages of different blending methodologies.
- To blend enriched air and trimix blends to within one percent of the target mix.
- About the potential hazards related to handling oxygen, and how to manage those risks.
- To demonstrate the steps for oxygen cleaning equipment, along with the requirements for oxygen service.
Getting Started
You can get your PADI Gas Blender Manual to start your independent study by contacting us.