Skills (general): The introductory tech diver will practice the use of new equipment to trim and control buoyancy. This helps to build the foundation for efficient diving. Once you have a solid foundation, you can start practicing locomotion or move on to more advanced skills.
2 first-stage regulator, 2 2nd-stage regulator, an exposure suit with side pockets and a BCD sidemount. A diving spool, mask and a spare mask. Technical diving equipments. 1 long, 2.10m to 7.10ft hose.
For dives deeper than 56m gas mixes called Trimix are used. In order to reduce narcosis and reduce the toxic effects of Nitrogen and Oxygen, Helium is added which has no negative effect on our body to very deep depth. There are additional risks with helium but those start at depths of around 180m. In history tests have been executed with different noble gasses, however they all turned out to be toxic for the human body, so helium was the only one adequate for diving. One other gas that has no effect on the human body is Hydrogen but due to its high risk of fire and explosion in contact with oxygen, the blending of it is very difficult if not almost impossible with the techniques we use currently.
Backmounted doubles came into use in part because of the problems with backmounted independents and single orifice doubles, neither of which are as common in modern diving. Independents are two cylinders strapped to one’s back with independent regulators on each one. If a 1st stage was to fail the diver was down to one cylinder. Single orifice doubles were two cylinders linked together with a valve, and one 1st stage regulator. If a first stage failed on a single orifice doubles set all the gas would be lost. The isolated manifold doubles used today eliminate both of those problems. Each cylinder can be worked independently, but the diver can also breathe gas from both cylinders out of one regulator. This form of doubles is typically held together with metal bands and the valves are linked with an isolation manifold, allowing the two to be separate if needed. Backmounted doubles diving is similar to regular single cylinder backmount, offering a profile that is vertically the same.
The sidemount rig was originally invented for cave diving as it allows the diver to pass thru cracks and restrictions (tiny holes) easier than the classic back mount rig.
However it is important at greater depths to decrease effort and achieve maximum performance to avoid overexertion and CO2 buildup. CO2 is the trigger for our breathing reflex, so the more CO2 we build up the more we will feel the urge to breathe. This means in the same amount of time we will pump more gas through our lungs and we take in more gas in the same amount of time.
How To Become A Sidemount Technical Scuba Diver Book PdfAcademics - A technical course's academic portion is very similar to other scuba classes. Students will be required to do self-study and share their new knowledge with their instructor. Although the dive planning requirements for technical courses are more complex than what most people are used to, they are essential in executing a successful dive. The gas management portion of the planning discussion for overhead and decompression diving will take more time than most divers are used. A computer program is used to calculate the gas volumes and reserve required for each dive.
International Training, parent organization to Technical Diving International / Scuba Diving International (TDI), and Technical Diving International / Scuba Diving International - offers both TDI and SDI versions of the Sidemount Diver course. Both courses have a lot in common. Both courses use identical learning materials (which we also wrote). So, what is the difference?
Rebreathers can increase your diving skills by using smaller cylinders. This can significantly increase the dive duration, especially when used for deeper dives. Rebreathers can be mounted sideways or back. It all depends on how they are configured.
While most Sidemount divers use two tanks as a standard, you can also just use one tank (I was told it’s called ‘monkey’) or more than two tanks for deco dives.
I don't know why or when I made the decision to take the Sidemount course. As with most of my diving decisions this was an easy decision. Sidemount certification would help me do proper cave diving, which I knew I wanted.
To dive, you must have a minimum of fitness and good health. Before diving, you may need to be cleared by a doctor if your health is not in good condition.
Our Scotty’s diving center headquarters facility is where all our Tec diving and technical scuba diving lessons are offered. It's located at the Shangri-la Hotel in Mactan. If you don't belong to the Shangri–la hotel, we can either pick you up at home or you can walk in.
Sidemount BCDs are a harness that has a bladder and an intricate system of sliding D rings, bungee cables, and clips. They are important for the tank position and trimming later in the water. Your instructor will likely spend quite some time making sure they fit perfectly.
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.
- Increased Bottom Time A Closed Circuit diver is not concerned with running out of gas because they are only limited by decompression. This can also be reduced by selecting an oxygen partial pressure that provides the diver with virtually limitless bottom times in 60 feet or less of water.
The depth range of oxygen rebreathers (simple closed circuit) is limited to approximately 6 m, beyond which the risk of acute oxygen toxicity rises to unacceptable levels very quickly.