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Continue on to the Tec Sidemount Diver program. Here you'll learn additional skills, such switching deco cylinders, and stage and switch deco cylinders.
You can do eLearning and coursework at home to help support local dive shops. Then, travel to complete your training dives. For a referral, contact your local PADI Dive Center.
Sidemount Diver Specialty can count towards Advanced Open Water Diver certification. Talk to your instructor about earning credit.
Decompression divers may add Helium into their cylinders to make deep dives over 130ft. Sometimes they are less likely to visit wrecks or reefs than astronauts to reach the moon every year.
Your Sidemount BCD is a harness with a bladder and a somewhat intricate system of sliding D-rings, bungee cords, and clips. Their position and fit are crucial for your tank position and trim later in the water and your instructor will probably spend quite a bit of time to get them just right.
If you want some diving classes alternative and lessons or want to know what's best next for your education, take a look at the three options below.
Technical diving was something that I never had an interest in at first. I remember laughing at the Tec divers and wondering why anyone would need more equipment. I love the feeling you get when you are close to nature. Tom had a reputation for being an inspirational teacher. It seemed to me that I should at least try.
Gear – While the gear is fundamentally identical, divers in their intro tech class (Intro, Tech, Sidemount or the CCR-Air diluent), may notice some fundamental configuration changes. They now have two second stages, each with a separate start stage. Gas planning becomes a detailed, thorough process. The harnesses also have more chrome.
Know what you’re getting: Prices include instruction and eLearning fees. Bear in mind, the cost of eLearning, by itself, can be worth anywhere from $140 to $280 or more. Thus, a $640 course from us may actually cost the same as a $500 course from someone else if you have to pay for elearning separately.
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:
Academics – The academic parts of technical courses are similar to any other class in scuba diving. Students will learn from their instructors and do some self-study. Technical courses require a lot more planning than most people are familiar with, but they are crucial to a successful dive. Gas management will be a more involved part of overhead and decompression dives than many divers are used. The computer program calculates the required gas volumes and reserves for each dive.
Because of the difficulties with single orifice doubles and backmounted independents, doubles were introduced to backmounted diving. Independents are two cylinders that are strapped to one's chest with separate regulators. A 1st stage failure would result in only one cylinder being used by the diver. A single orifice double was two cylinders connected together by a valve and one regulator. All gas would be lost if the first stage of a single orifice twice set failed. Today, both problems are eliminated by the isolated manifold doubles. Each cylinder can be operated independently. However, the diver can still inhale gas from both cylinders using one regulator. The doubles are usually held together by metal bands. The valves are connected with an isolation manifold so they can be separated if necessary. Doubles diving with backmounted doubles is similar to a regular single-cylinder backmount. It offers a vertical profile that is the same.
‘Caverns Measureless to Men’ by Sheck Exley, one of the pioneers of cave diving in Florida, USA. He also wore ‘Basic Cave Diving: A Blueprint for Survival’ which studies many cave diving accidents.
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.
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.
Technical diving (also known as tec diving or tech diving) is non-professional scuba diving that exceeds the agency-specified limits of recreational diving.