TDI Trimix

TDI Trimix

As your motivation to explore progresses you will find that you may want to go deeper to dive that historical wreck or that cave system that you have read so much about. Or you may just want to continue your progression and learn new skills and techniques. One of the major limiting factors of going deeper is narcosis; TDIs Trimix Diver course shows you how to minimize the effects of narcosis by using helium in place of a percentage of the nitrogen in your breathing gas.

Why TDI Trimix?

TDIs Trimix Diver course shows you how to minimize the effects of narcosis by using helium in place of a percentage of the nitrogen in your breathing gas.This four day course provides the training required to competently and safely utilize breathing gases containing helium for dives that require staged decompression, utilizing nitrox and/or oxygen mixtures during decompression to a maximum depth of 60m.

Upcoming Courses (back to top)

No courses organised at the moment, please contact us to discuss your requirements.

How do I book myself on a course?

To book yourself on a course please select one of the courses above, send us a message, and we will get back to you to discuss further details.

Further information on TDI Trimix (back to top)

What do I need to start?

TDI Entry Level Trimix Diver Manual/Workbook This course must be conducted using a twinset. Twinsets/regulators are available for hire for the duration of the course. In addition, there are a number of ancillary equipment items that are required for the course. Please contact us for full details. All of these can be hired for the duration of your training.

What will I do?

The course consists of a minimum of eight hours of theory/knowledge development, accompanied by a minimum of four decompression open water dives. Two dives must be deeper than 40 metres. One will be deeper than 55 metres. Physics Review Physiology Review Formulas Review Use of helium Implications of helium - decompression/HPNS/ Suit inflation Decompression Options Equipment Considerations Dive computers Dive Planning Decompression Theory Decompression gas choice Ascent/Descent Techniques Decompression stations/types Surface Support considerations This course largely builds on the skills and techniques developed in previous TDI courses. However, given the more demanding nature of the dives being undertaken, a higher degree of proficiency is expected in all areas. Buoyancy, awareness, run time management, ascent/descent control, teamwork, gas management (and others) are all looked at closely.

How long will it take?

The course requires four days to cover all required material. The courses are usually scheduled to run over four consecutive days (Thursday-Sunday). Other scheduling options are available (i.e. over two weekends) but we strongly recommend the course is completed over the shortest period possible. Please understand that the course is performance based. This means that certification is only awarded upon demonstration of being capable to conduct deep trimix dives. This may involve further training dives beyond the four required

What previous experience do I need?

To enrol on this course students must: Be minimum age 18 Hold minimum certification as a TDI Advanced Nitrox and Decompression Procedures, or equivalent from another agency. Provide proof of a minimum 100 logged dives

What do the fees include?

All professional tuition Course Manual Insurance costs while on the course All registration fees with TDI upon completion. Use of Trimix analyser. Use of dive planning software (various types)

What don't fees include?

Hire of any equipment Cost of instructors trimix fills. Entry fee to dive site used for the Open Water dives (if applicable) Costs of transportation to and from dive sites (if applicable) Any personal costs (eg. food, drink, accommodation)

What can I do once I'm qualified?

Upon successful completion of this course, graduates may engage in technical diving activities utilizing custom trimix mixtures (Maximum 60 metres) without direct supervision provided: 1. The diving activities approximate those of training 2. The areas of activities approximate those of training 3. Environmental conditions approximate those of training 4. Oxygen (O2) percentages are 18 percent or higher

What's next?

Upon successful completion of this course, graduates are qualified to enroll in: 1. TDI Advanced Trimix Course