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.
I arrived just two months ago on Malapascua Island in Philippines. There, I will learn how to become a Tec diver instructor. Since 2012, I've been a Bali recreational instructor. I am eager to improve my diving skills and expand my knowledge. Sidemount PCB was the place where my first experience of technical diving was. Tom West, PADI course director and instructor-trainer for Tec, made me a Certified Tec-50 Diver.
Decompression divers employ oxygen mixtures of all kinds to extend their time looking at wrecks and reefs on the ocean floor. While the sport diver may get two 15 minute bottom time dives at 100ft the decompression diver can cruise around for 60 minutes or more, getting the most bang for their buck.
Scuba sidemount diving is very popular, even in open sea.
The PADI Training app is available for Android™ and Apple® iOS devices. For an optimal experience, devices should be no more than three models old with the most current OS (operating system).
For dives past 130ft decompression divers blend some Helium into their cylinders and dip into the realm of the rarely seen. The reefs and wrecks they experience are sometimes visited less frequently in a year than astronauts to the moon.
Rentals are available for items such as primary lights and cylinders that can be hard to transport. If you require any of these items, please let us know.
If you are not ready to dive locally, but wish to support your local dive center, you can complete eLearning courses and coursework close to home. You can then travel to complete your training dives. Ask your local PADI Dive Center for a referral.
Sidemount mounting for cylinders was originally used in cave diving. Since then, they have grown to be more popular in all types of technical diving. The dual cylinders are separated with a 1st stage for each cylinder. They then mount them on either one side of the diver's bodies. However, this does not allow the diver access to any valves and allows him to only breathe from one cylinder in the unlikely event of a regulator failing. Sidemount diving offers a divers a wider horizontal profile, but smaller vertical profile.
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?
Do not worry about how it all will come together. A large part of the course teaches you how to set up Sidemount equipment and how to adjust bungees to ensure your tanks are in good shape. Your instructor will be there to help you through it all!
Share the experience with others or give the gift to endless adventure! PADI eLearning(r), now available for purchase, can be shared with a recipient of choice. It doesn't matter whether you purchase the course to gift or to assign to family members, it is super simple.
Technical diving means that a diver is not allowed to reach the surface from any point during the dive. It could be due to a ceiling in the form of a cave/wreck or virtual ceilings created by decompression obligations. To avoid decompression sickness, you must perform mandatory stops on ascent when the NDL's are exceeded. This usually requires the use special equipment like Sidemounts and Twinsets. Twinsets and Sidemounts require special gas mixes, additional training, and twinsets/sidemounts to ensure that you can perform these stops correctly on ascent in order to maximize Nitrogen offgassing.
‘Diving into Darkness’ by Phillip Finch is telling the story about an Australian cave diver trying to recover a body in a South African cave called Bushman’s hole.
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.
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.
- 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.