trimix diving courses page
TDI Trimix Instructor course
Blending - adv trimix


The PADI Tec Trimix 90 course is available in Phuket Thailand. This the follow-up for the TecRec 50 or TecRec Trimix 65. The Tec Trimix Diver course prepares the extreme diver to further explore the world of technical deep diving; the gas of choice is Trimix a blend of oxygen, helium and nitrogen.

Most of the course will take place in the lake of Song Hong in Nakon Sri Thammarat Province due to lack of depth in Phuket. The first 2 days will be held in Phuket for classroom and confined and 1 day on the boat for the equipment configuration. Then the next day you will drive off to the lake. here accommodation and meals are included. 

This course turns experienced technical 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.

PADI Diving Course: The PADI Tec Trimix Diver course takes you to the outer edges of technical deep diving, opening the door to pristine virgin dive sites. Our PADI diving courses are available in Phuket Thailand.

Student Prerequisites PADI Tec Trimix 90 Course:

Minimum Age:18 years
Min certification/diver level:PADI Rescue Diver (or hold a qualifying certification from another organisation and having proof of CPR and first aid training with the previous two years).Certified as a TecRec 50 or TecRec Trimix 65 (or those holding a qualifying certification from another training organisation)
Min amount of dives:Have logged at least 150 dives
Course Duration:6 days and consists of two days of theory and 4 days boat diving with a min of 8 dives. However, students who have already completed the Tec 50 Extended Range course may be credited two dives towards this course.
System:Open Circuit twin set
What the course covers:Trimix diving depth ranges Exposure planning Selecting a mix Argon inflation systems Handling three or four decompression cylinders Decompression models Emergency procedures Face masks and multi-gas computers
Certification available through:PADI
Combination of courses:Trimix 90 and Advanced Wreck
Primary and secondary regulators (for back gas or Sidemount set-up)Two stage/decompression regulators
Mask + Back-up maskBCD (wing) and harness or Sidemount Wing (with a min lift of 40 pounds)
Depth gauge/computer Timing device and backup timing device
Appropriate exposure suit 3mm or 5mm Knife/cutting device and backup
Two inflatable signal tubesReel and spool
Slate and backup slateCompass
Torch and Back-up torches (Trimix Diving, Wreck diving and cave diving courses)Hood - for Cave, Deep and Wreck Diving
trimix diving courses page


We have added some important downloads for you. After you have transferred a deposit to secure the course and dates, please sign them and send them back to us via e-mail.