I’ve just arrived on Malapascua Island in the Philippines, where over the next two months I’ll work my way up to becoming a Tec diving instructor. I’ve been a recreational instructor in Bali for the last two years and want to expand my experience and professional dive résumé. My first taste of technical diving was at Sidemount PCB, where PADI course director and Tec instructor-trainer Tom West molded me into a Tec-50 diver.
You can rent items like primary lights and cylinders, which may be difficult to carry. Please let us know if you need these.
Divers who decompression dive use oxygen mixtures of every kind to prolong their time on the seafloor looking for wrecks and corals. The sport diver might only get two dives at 100ft, but a decompression diver can cruise for up to 60 minutes and still get the best bang for their buck.
Sidemount cylinder mounting originated for cave diving and have become more popular in all forms of technical diving since. They separate the dual cylinders, with a 1st stage on each cylinder, and mount them on either side of the diver’s body. This doesn’t allow the diver to breathe from either cylinder in the event of a regulator failure, but does give the diver easier access to valves. Sidemount diving gives the diver a larger horizontal profile, but a smaller vertical profile.
A great fact book about technical diving is ‘Deco for Divers – A Guide to Decompression Theory and Physiology’ written by Mark Powell.
There are two options available with most agencies: technical Sidemount or recreational Sidemount. Similar prerequisites apply to both TDI or SDI. However, the tec-sidemount course will increase your skills. The course will also require you to learn more about them. Perfect trim and maintaining your level during the skill development is a must.
Take a look at these three options if diving classes and lessons are not what you desire or you need to decide where to go next.
Mindfulness - Technical diving can still be fun. Technical diving is all about seeing cool things. However, technical divers can see more than sport divers and are able to see deeper, further, and in places that are not visible to sport divers. Technical divers can still be fun, but they are also very focused. While jokes are still allowed, there is no denying that laughter can be had. However, it is important to be serious about dive planning and execution. There are risks to diving. Those risks increase if you don't plan well, practice your skills and execute properly.
Certification cards: We issue these only when earned. Simply taking part in a course does not guarantee certification. For cave courses, certification cards from multiple training agencies may be available. C-cards generally cost around $30 each, depending on agency. Your instructor can tell you more.
Cave passages formed over millions years of water erosion and extending thousands of feet from their entrance are reserved only for overhead divers. They are stunning in their beauty and peacefulness, but only because they were formed so long ago.
My first courses were technical sidemount, and sidemount. Sidemount diving, which is the name of the course, involves placing your tank into your hands. My hands and knuckles were covered with cuts by the end. It is possible to remove the tanks from the clips and lay them out front of you Superman-style. The afternoon dive went much better after I made some adjustments to our harness. I was now comfortable with my harness, and was 'Superman'-ing with the tanks. Sidemount allows for an extraordinary level of freedom. Matt had set up obstacles courses. Soon we were flying around them, with tanks out front, barrel rolling and even swimming upside-down.
Sidemount divers typically use two tanks, but you can use just one tank (I was taught it's called "monkey") or more than two tanks to do deco dives.
SDI/TDIIncludes Two Open Water DivingsMinimum Age 18 Years, Minimum 15 Years with Parental Consent.
The initial pool sessions were tough; I felt like an open-water diver again, strapped into the twin tanks and trying to conduct valve drills. But as we progressed through the Tec 40, 45 and 50 courses, new skills started to come naturally, and by the end of the course I was enjoying myself. The satisfaction in Tec diving comes from taking your dive skills, buoyancy and awareness to the next level. Knowing that you’re capable of managing life-threatening emergencies at depth, and without the option to ascend straight to the surface (due to decompression requirements) is quite a buzz. And it’s satisfying to execute your dive plan with military precision.
According to experts, approximately 40% of technical divers enroll in additional education and training programs. This yields a reasonable estimate of approximately 160,000 active technical divers worldwide.