Advanced Trimix Training

Upcoming Course Dates

September 19-21, 2019 - Thursday to Saturday - One spot open

My Advanced Trimix Diver Course

This is serious training, for serious diving. Not every diver is going have the desire or the ability to dive in the 300 foot range, but if you are signing up for this course, you are already a knowledgeable, capable Trimix Diver. You are already among the elite of diving. This course is the highest level of Open Circuit diving offered.

My version of Advanced Trimix Diver Training meets all of the standards for the TDI Advanced Trimix certification course. However, I provide students with some additional training, experience, and insights beyond the industry minimums. I teach what I feel is the valuable information necessary for divers who are planning and executing deep open circuit Trimix dives. Students who successfully complete this training should be able to competently plan and execute decompression dives on Hypoxic (Oxygen less than 17%) Trimix, including the use of travel mixes, up to the TDI depth limit of 330 fsw, under similar conditions, using similar equipment.

This class is offered independently by me in Pompano Beach, Florida, near my home. The course consists of three days of training, ideally with diving in the morning, and classroom in the afternoon each day. There are 4 certification dives total. The planned lecture/dive schedule may be rearranged to accommodate the best weather conditions.

This is a serious class. It is fun for me to teach, and a great experience for students, but this is the highest technical certification for Open Circuit scuba. Divers signing up for this course already need to be savvy, responsible, knowledgeable, experienced divers. This is an intensive three day program where we cover a lot of diving theory, but we will also be making some deep, serious dives.

I totally expect that you come to this class with a firm grasp of diving fundamentals, and already knowing how to dive Trimix. What we will be doing is honing the skills that you already have, and filling in the gaps of your existing knowledge and experience. As a novice diver you knew nothing, and you knew it. As you gained experience, you probably thought you knew it all. As you acquired real knowledge, and experience, you realized how much there still is to know. This is where I expect the student's mindset to be for this class. We all continue to learn, and approach the deep water with humility and full knowledge of its dangers, and our individual limitations. Our survival depends on our honesty, our understanding, and our willingness to be ready for whatever might happen.

All of the training dives will be on local area shipwrecks. The first day of diving we will make two air dives working on skills in the 100'-150' range. On day 2, we will be making a single Trimix dive in 250' range. For the last day, we will be conducting a single dive on a wreck in the 300' neighborhood.

Students that complete the requirements of the program will receive the TDI Advanced Trimix certification. However, participation in the program is no guarantee of successful completion and getting a certification card. Divers must earn their certification, by meeting all of the TDI requirements, including a written final exam.

The class texts will be the TDI Advanced Trimix Manual, and Steve Lewis' book on risk management, Staying Alive. Student divers will be required to read the text completely prior to the beginning of the class. I will mail or deliver the books to you as soon as you register for the class. Students will also be required to do some additional reading, as well as watch a couple of online videos. I want you to show up prepared, and comfortable.

In addition to meeting all of the Prerequisites, students will be required to read and sign the TDI Liability Release, and complete the TDI Medical Form. Students may have medical issues which will require the student to have their doctor to sign off, prior to the start of class. The most important thing for me is the safety of my students, and if there is any doubt about a student's ability to participate, this needs to be addressed by the student, their family, and his/her physician, prior to the start of class.

The weather is typically great in Florida, and that's why they call this the Sunshine State, however there are bouts of bad weather, and even the dreaded hurricane. It is entirely possible that we could lose one or all of our dive days due to weather. We will always do the best we can with the weather we have, but I can't expect you to learn how to make good decisions with regards to diving, if I am making bad weather decisions with regards to our diving together. If I make a mistake, it has to be on the side of safety.

If the advance weather forecast is undeniably terrible, as in the case of a hurricane, I will make a decision to cancel the class in advance, and reschedule. If we lose dive days due to weather, I will make them up with you, on mutually agreed upon dates. If you are flying to Florida, you may want to consider travel insurance? DAN now offers travel insurance, as do other insurance providers. At the same time, the weather is the weather and we will try to do the best we can to get you to safely complete your dives. If you miss a dive for any reason, you have 12 months to complete the dives for the certification.

This class is simply not for everyone. The diving is serious, and dangerous. Students need to be committed to managing the very real risks associated with dives like these. To sign up for this class, you need to convince me that you are experienced, serious, mature, and humble. Diving deep on Trimix is inherently dangerous, you need to be prepared, and this is your warning.

  1. Students must be at least 21 years of age.
  2. Students must be certified as an Extended Range, Basic Trimix Diver, or equivalent.
  3. Students must show a minimum of 150 logged dives, with 50 deeper than 100 fsw.
  4. Students must have dive accident insurance.
  5. Students must possess a level of physical fitness and mental maturity suitable for the physical and psychological pressures of diving in the wreck environment to a depth of 330 fsw.
  6. For reasons that I am sure you will understand, I will only accept students for this class that I am familiar with, or come highly recommended.
At this level of diving, I expect you to already own and be familiar with everything you need for this class. I am just letting you know what I need you to bring.

Please feel free to get back to me at any time with questions.

  1. You will need main cylinders with volumes appropriate for dives planned to 300’, considering your individual SAC rate. You will also need two deco cylinders, and Aluminum 40's will not suffice. Cylinders can be rented for this course in Florida, through me for $75 for the 3 days.
  2. You will need a Primary and a Backup regulator on your Bottom Mix Supply, with one long (6') second stage regulator LP hose, and a necklace to hold your Backup second stage in place. You will need two deco gas regulators, with SPG, at least one O2 clean.
  3. You absolutely need a quality Dual Bladder Buoyancy Compensator suitable for the Open Water environment, or a dry suit. There are no exceptions. For deeper dives, you really need a dual bladder, or a dry suit, because we simply do not have the time to screw around in the event of a BCD failure.
  4. For  this class, I am making a Shearwater Dive Computer mandatory. You also will need a backup computer or depth gauge. In class, we will download your dives on the Shearwater, and dissect them. This makes the Shearwater a valuable learning tool for you in this class, and it will make a definite difference in the way you dive. If you do not have a Shearwater, and do not wish to buy one, I will rent you one for the three days of class - $25.
  5. You will need a Dive Planner.
  6. You will need one Primary Light, and one Back Up Light.
  7. You will need to bring with you at least one Ascent Reel with a minimum of 250' of line on it, and at least one SMB (4-6') , and a backup SMB spool/reel. I prefer open bottom SMB's that allow you to fill with your BCD.
  8. Two Line Cutting Devices are required, and they need to be sharp.
  9. A usable underwater slate, wrist slate, or notebook, and a writing implement are required.
  10. You need a wetsuit or drysuit, with hood, suitable for the water temps for the dates of the course. Feel free to call me for a better handle on water temps and further advice.
  11. You need gloves to protect your hands. You can use neoprene dive gloves if you like, but rubber coated work gloves are adequate for the warm water environment as well. I prefer the Hammerhead Dyneema Poly coated gloves.
  12. You need a comfortable mask, a backup mask with a way to carry it, and a comfortable pair of fins.
  13.  If you need to wear lead weights, make sure you bring a belt or harness to hold them. The lead weight you can get here.

The cost of the class is $1,500. This includes all of the training, the 4 boat dives (3 trips), and the Advanced Trimix certification from TDI. However students are responsible for purchasing the two class textbooks (Staying Alive is on Kindle), all of their own equipment and maintaining it in working order, gratuities for the dive boat crew ($10 per diver per day is customary for reasonably good service, $20 for exceptional service), cylinder rentals (if required), as well as all the gas fills for the dives. Of course, students will be responsible for all their own transportation, meal, and lodging costs.

Prospective students who meet all the requirements, may reserve a place in class with a $750 non-refundable down payment. I will invoice you through PayPal and you can pay by credit card, check, or of course PayPal. If you have any doubts about your ability to participate in this class, please do not make a commitment until you are sure you are going to be able to attend. The balance of $750 is due on the first day of class. Checks, cash, credit cards, and PayPal are all accepted. If you have any questions at all, please feel free to contact me.

Contact John