TDI Deco Procedures Instructor

TDI Deco Procedures Instructor 2018-06-27T19:06:29+08:00

Project Description

TDI Deco Procedures Instructor

This course examines the theory, methods and procedures of planned stage decompression diving. This program is designed as a stand-alone course or it may be taught in conjunction with such TDI courses as TDI Advanced Nitrox Instructor, TDI Advanced Wreck Instructor, or TDI Extended Range Instructor.

The objective of this course is to train instructors how to plan and conduct a standard decompression procedures course not to exceed a maximum depth of 45 metres / 150 feet. The most common equipment requirements, equipment set-ups, decompression techniques and decompression mixtures are covered.

Academic topics

1. Overview of Safety Stops Compared to Required Decompression Stops
2. Physics
a. Pressure review
3. Physiology
a. Mechanisms of bubble formation
b. Advantage of hyperoxic mixes for decompression
c. Nitrogen absorption and elimination
d. Carbon dioxide (CO2) toxicity
e. Ascent / descent rates
f. Hyperthermia
g. Hypothermia
h. Psychological aspects: task loading, stress, panic, time management
4. Decompression Options
a. Air
b. Nitrox
c. Oxygen (O2)
5. Equipment Considerations
a. Twin cylinders or single cylinder options, valve options
b. Stage cylinder options
c. Harness / BCD option
d. Computer, depth gauge, bottom timer options
e. Ascent and navigation reels
f. Lift bags/surface marker buoys for drifting or free decompression
g. Jon-line or Garvin clips
h. Proper weighting and buoyancy control during dive phase and deco
6. Dive Tables
a. Introduction and review of different models (DCIEM, U.S. Navy, etc)
7. Dive Computers
a. Mix adjustable
b. Oxygen (O2) integrated
8. Dive Planning
a. Standard operation
i. Gas requirements
ii. Oxygen (O2) limitations
iii. Nitrogen limitations
b. Emergency planning
i. Omitted decompression
ii. Decompression sickness
iii. Equipment failure
9. Procedures
a. Primary and decompression gas
i. Normal operations
ii. Failure, loss or inadequate emergency procedures
iii. Analysis and logging
iv. Safeguards on deco supply regulators
v. Rigging and deployment of decompression equipment
b. Descent
i. Methods of entry, down lines or free decent
ii. Organization of equipment carried on diver
c. Ascent
i. Variable rates
ii. Trim and compensation
d. Fixed or Drifting Deco methods
i. Up lines fixed to bottom
ii. Reels and lift bags/surface marker buoys
iii. Free drifting stages or boat supply
iv. Self-contained versus surface supply / rendezvous gas cylinders
e. Support
i. From shore
ii. From descent line or fixed platform
iii. From live aboard boat
10. Administration Procedures
a. Medical form
b. Waiver forms
c. Risk management
d. Registration forms
e. Standards and procedures

The following skills must be completed by the instructor candidate:

1. Prior to the dive, analyze the gas mixture in each cylinder, fill out the contents tag and facility nitrox log
2. Perform an advanced pre-dive plan and dive analysis (including risk assessment)
a. Predetermine the appropriate depth and time limits for the dive based upon personal ability,
environmental conditions, and gas consumptions (personal and team)
b. Predetermine the limits associated with nitrogen, including no decompression limits (NDLs) and
equivalent air depth (EAD)
c. Assembly of diver carried equipment
3. Properly execute the planned dive within all predetermined limits
a. Proper descent and ascent rates
b. Proper staged decompression stop procedures
c. Monitoring the status of staged decompression equipment, (tables, computers, cylinders,
regulators, etc)
4. Contingency situations and problems solving (as appropriate by instructor trainer)
a. Omitted decompression
b. Extended bottom time profile with increased decompression and recalculation
c. Failure to deploy lift bag / surface marker buoy and reel
d. Missed up-line or missed boat anchor
e. Loss of decompression gas
5. A proper stop of at least 3 minutes shall be conducted on all dives and proper staged decompression stops
wherever required
6. Demonstrate the correct deployment of a lift a bag / surface marker buoy using a dive reel and / or up-line
7. Demonstrate a simulated emergency gas sharing at a stationary depth not to exceed 30 metres / 100 feet
8. Demonstrate emergency deployment of a backup regulator or bail-out scuba system containing bottom mix
at a depth not exceeding 30 metres / 100 feet
9. Demonstrate the proper deployment, management and use of the bottom mix, deco-mix and travel mix (if
used), including but not limited to:
a. Conservative gas management
b. Depth control to avoid descending too deep for mix
c. Demonstrate buoyancy control and awareness throughout the dive

1. Minimum age 18
2. Minimum certification of TDI Advanced Nitrox Instructor or equivalent (unless Advanced Nitrox Instructor course is taught in conjunction with Deco Procedures Instructor)
3. Minimum certification of TDI Decompression Procedures diver or equivalent
4. Provide proof of 150 logged dives
5. Have certified 10 students in SDI Deep Diver or TDI Advanced Nitrox diver or equivalent or 10 SDI Advanced Adventure Diver or equivalent

You will need a copy of TDI Decompression Procedures Instructor Guide and  the TDI Standard and Procedures Manual . We will provide you with additional non course related reading when you book your courses via our online classroom.

The course cost is 31,000 PHP, this includes dives and tuition. We can arrange rental equipment, however we highly recommend you use your own if at all possible. Not included is the instructor materials, or professional fee with TDI. Please ask us if you need assistance with these.

If the TDI Advanced Nitrox Instructor course is taught in conjunction with this program the combined cost for both courses will be 50,000 PHP.

We have a limited number of twin bed fan dormitory rooms for 2500 PHP per person, per week. These come with a kitchenette and bathroom, simple backpacker style.

If you prefer something else we work with a number of local resorts and hotels, or you might like to check services like,  AirBNB we can help with local information if needed.

A typical hotel room starts from 1500 per night and up, the average would be around 2000 PHP. A typical self service monthly rental room or studio from 10,000 PHP and up, the average around 15000 PHP per month.

See here for more information on accommodation.

Contact the Course Director as early as possible, we can only accept a limited number of students on to each program, it is wise to book your preferred date in advance.

Please provide the following information when you book.

Total number of dives you have done
Number of dives you have done on Nitrox
What technical certifications do you hold
Number of decompression dives you have done
How long you have been diving
Any significant gaps in your diving
What equipment you will need



Lee Butler
Lee ButlerCourse Director, EFR IT & Tec IT
Lee has been a PADI Course Director and Instructor Trainer since 2012, conducting PADI IDC’s and Instructor programs with Savedra since.
Lee is a keen open and closed circuit technical and cave diver, and brings a wealth of diving knowledge and experience to each program.
In addition to being a Course Director he is also the General Manager of Savedra Dive Center, this puts him in a great position to help you get started with your new diving career.

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Contact Info

Savedra Dive Center, Moalboal, Cebu 6032

Phone: +63 32 474 3132

Mobile: +63 917 323 0369

Web: Go Pro Philippines

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