Sidemount and technical were my first courses. Sidemount diving involves placing your tanks in your hands. I was so numb that my fingers and knuckles had been cut by the end. The idea is to take the tanks off of your hands and let them flow out in front. After making adjustments to the harness's size, the afternoon dive went much easier. I was now able to unclip the harness and 'Superman' with the tanks. Sidemount provides an amazing degree of freedom. Matt installed obstacle courses, and we soon found ourselves flying around them while holding tanks at our feet. We also tried barrel-rolling and swimming upside down.

Technical divers are able to explore wrecks and reefs at depths that are below the recreational limit of 30 m/130 ft. Specialized training allows them to explore underwater caves, and other places that are beyond the reach of recreational diving.

How To Become A Sidemount Technical Scuba Diver North America

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.

Sidemount Diver Specialty dives may count toward Advanced Open Water Diver certification. Ask an instructor.

Open Water Diver

Academics - 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.

Different depths require the use of different gas mixes. The maximum partial pressure of oxygen a diver wants to dive at is 1.4 which is reached on air at 56m. Due to the water pressure the pressure of each individual gas increases and therefore we need to use appropriate mixes if we choose to go deeper. In general, the more oxygen a gas mix has the less deep we can go. A tech diver will use low oxygen mixes at depth and high oxygen mixes coming up shallower to off-gas Nitrogen faster and decrease the mandatory decompression time overall.

Open Water Diver
Penetrations

Penetrations

Make sure you understand what you're buying: Prices include instruction as well as eLearning fees. Remember that eLearning fees can run anywhere from $140 - $280. For example, a $640 course offered by us may be equivalent to a $500 course provided you pay separately for elearning.

Consider continuing on to Tec Sidemount Diver course in which you’ll learn additional skills specific to tec diving in sidemount, such as staging and switching deco cylinders.

How long does a scuba tank last

Sidemount diving was originally developed in cave diving. However, it has now made its way into recreational non-overhead diving. Simply put, sidemount diving means that you no longer wear one or two tanks on your back. Instead, you wear your tanks on either your side. The tanks can be attached to a Sidemount BCD with clips and/orbungee cords. This gives you great flexibility. Cave divers were able to use this flexibility to allow them to transport their tanks underwater and fit into tight spaces.

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Decompression
Decompression

Your Sidemount BCD harness is made up of a bladder, sliding D-rings and bungee cords. Your tank position and trim will depend on their fit. Your instructor may spend a lot of time getting them right.

Cave passages that have been formed through millions of years of erosion are only available to those who are certified in overhead diving. They stretch thousands upon thousands of feet. The incredible time span in which these caves were created is a testament to their unique beauty and tranquility.

How much is a Poseidon rebreather

Tech diving is gaining popularity. We were so excited to see it here at Girls that ScubaHQ! There were a lot of questions, and we were nervous so we headed to Theresia Geller, a Blue Marlin instructor in Gili T. Lombok. She taught us the basics of twin sets and introduced us to technical diving. Here's what she taught:

Divers must maintain a minimum level fitness and health. Some conditions such as chronic illness, recent surgery or medication may make it necessary to obtain written permission before you can dive.

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Frequently Asked Questions

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.
 

To register for the PADI Advanced Rebreather Diver course, you must first: You must be a PADI Open Water Diver, but you must also be a PADI Advanced Open Water Diver to become a PADI Advanced Rebreather Diver. Have at least 30 dives under your belt.

- 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.