I'm not sure when or why I chose to take my Sidemount course. It was, as with many of my diving decisions. I think it was a case where I thought, "Oh, that looks cool. Could be useful. I'm going for it!" I knew Sidemount would be useful and something I could continue to use and improve on. Sidemount certification would be useful for me if I ever wanted to cave dive.
To dive beyond 130ft, decompression divers should add some Helium to their cylinders. This will allow them to enter the realm of the seldom seen. Sometimes, the reefs and wrecks they visit are visited less often per year than astronauts to orbit the moon.
Sidemount cylinder mounting was developed for cave diving. They have been more popular in technical diving ever since. They are able to seperate the dual cylinders and mount them on either end of the diver's body. While this prevents the diver from breathing from one cylinder in case of a failure of the regulator, it allows them to have easier access to the valves. Sidemount diving provides a diver with a more horizontal profile but a smaller vertical one.
There are many great readings about technical diving. Some are stories of personal experiences and adventures in technical diving that are definitely worth reading. Some of the greatest books for sure are:
After successful completion, the Tech Diver Level 1 can be started and allows a diver to dive to 51m using appropriate Trimix gas mixes beyond 30m. It is also possible to start Cave Diving Training after the Fundamental Tech Pass.
A great fact book about technical diving is ‘Deco for Divers – A Guide to Decompression Theory and Physiology’ written by Mark Powell.
The very general definition of technical diving is to be exposed to a ceiling that does not allow a diver to ascend to the surface at any moment of the dive. This might be due to a real ceiling, in terms of a cave or a wreck, or a virtual ceiling created by a decompression obligation. In this case, by exceeding the NDL’s, mandatory decompression stops have to be performed on ascent in order to avoid any case of decompression sickness. In most cases this requires the use of special equipment, e.g. Twinsets or Sidemount, special gas mixes and of course additional training to be able to perform those stops accurately on ascent to optimize off-gassing of Nitrogen.
Every PADI Specialty completed will get you one step closer towards the Master Scuba Diver(tm).
Television, magazines, stories from a friend – it doesn’t matter the source, exploring the underwater world and escaping the surface is enticing and exciting. So how do we keep exploring? What exactly is technical diving?
Know what you're getting. Prices include instruction, eLearning fees and other costs. You should also consider that eLearning costs can vary from $140 to $280. In other words, a course that costs $640 may cost as much as a $500 course you purchase from us if you are required to pay for the elearning separately.
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.
This scuba diving course is also offered by another agency, PADI tec sidemount diving.
Sidemount diving is easy with an Open Water Diver. You will need to be able to handle your equipment yourself. Sidemount diving adds a new dimension in terms of equipment setup and skill.
International Training, which is the parent organization for Technical Diving International / Scuba Diving International, offers both the SDI version and TDI versions their Sidemount Diver course. Both courses can be used in the same way. Both courses use the exact same learning materials (which, obviously, we wrote). What's the difference then?
from 170 to 350 feet
While conventional scuba diving has a recommended maximum depth of 130 feet, technical divers may work at depths ranging from 170 feet to 350 feet, and sometimes even deeper.
5-6 days
Rebreather training classes are typically 5-6 days long, but can be longer depending on a variety of factors such as the training agency, your local conditions, your instructor, and your ability to meet the class standards.
Have a PADI Deep Specialty Instructor certification or have completed a PADI Deep Specialty Instructor course. Have at least 100 logged dives, including at least 20 enriched air dives, 25 dives deeper than 18 meters/60 feet, and 15 dives deeper than 30 meters/100 feet. You can become a Tec 45 diver.