SDI/TDIIncludes 2 Open Water DivesMinimum 18 Years, 15 Years with parental Consent.
Divers using decompression oxygen mix all types can extend their time looking at wrecks or reefs on the oceanfloor. The sport diver may be limited to two short dives at 100ft. A decompression diver can cruise the seas for 60 minutes or longer, getting more bang for his buck.
Because single orifice duals and backmounted independencies are less common today, backmounted doubles became popular. Independents have two cylinders strapped to the back of one another with independent regulators. If the 1st stage failed, the diver would only need one cylinder. Single orifice twos were two cylinders that were connected with a regulator and a valve. A failure on the first stage would result in gas loss. Both problems are solved by the isolation manifold doubles that are used today. Each cylinder may be used independently. But, divers can also use the same regulator to breathe gas from both. These doubles are often held together by metal bands. If necessary, the valves can be connected to an isolation manifold. Backmounted doubles diving has a similar profile to regular single-cylinder dives. However, the profile is vertically identical.
Scuba diving requires a minimum level of health and fitness. Chronic health conditions, certain medications and/or recent surgery may require you to get written approval from a physician before diving.
Backmounted doubles were created in response to problems with single orifice and backmounted independences. Independents consist of two cylinders, each with its own regulator. The diver could only use one cylinder if a first stage failed. Single orifice duals consisted of two cylinders linked by a valve. One regulator was used for the first stage. The gas would not be released if the first stage failed due to a failure of one orifice doubles. Both of these problems have been eliminated by today's isolated manifold duplicates. Each cylinder is capable of being worked separately, but the diver can use one regulator to allow him or her to inhale gas directly from both cylinders. This type of doubles is usually held together using metal bands. Additionally, the valves are linked by an isolation manifold which allows the two to be separated as needed. Backmounted doubles diving looks similar to regular single cylinder backmounts, but it has a profile that is vertically identical.
Sidemount diving originated in cave diving, but it has made its way to recreational and non-overhead diving in recent years. You will now wear your tanks side-by-side, instead of having one or two tanks attached to your back. You can attach the tanks to your Sidemount BCD using clips or bungee cords. This allows for extreme flexibility. This flexibility was initially what allowed cave divers to remove their tanks underwater in order to fit into narrow spaces and make their profile smaller.
There are three components to certification: skill practice, knowledge development and open water diving. All three parts can be completed locally or on vacation, or you can split them.
You may also be interested in the PADI tec Sidemount Diving Course.
Sidemount PCB offers assistance to those who have questions about their medical ability to dive.
Although I'm still learning, Sidemount diving is something I feel confident in. I have done 20 Sidemount dives and I can proudly say I'm a Sidemount diver.
Skills (general) – The introductory tech diver will practice their trim and buoyancy with the new equipment configuration. This builds the foundation of efficient diving. Once the foundation is there the student can practice locomotion and move on to more advanced skill practice.
Sidemount diving is a great option, especially for those who are already tec divers. You will need to learn how to adjust your rig, how you can enter the water with it (yes, it is different, but it is more relaxed).
For items such as primary and cylinder lights that may prove difficult to transport, rental is possible. We will be happy to assist you if you have any questions.
Sidemount diving provides an independent air source. Two tanks are used, each with their own regulators and first stage, SPG. This makes it much safer and gives little air-hogs (like me) a lot more oxygen. Sidemount's tanks can be easily accessed from the surface. There is no pressure on the back.
To begin a technical diving course, you must have completed the following prerequisites: a PADI Advanced Open Water Diver certificate or equivalent, a PADI Enriched Air Diver certificate or equivalent, and a PADI Deep Diver certificate or proof of at least 10 dives to 30 metres/100 feet.
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.
2-3 hours
Even with small cylinders, you can usually dive for 2-3 hours (rebreathers typically have two 2/3l cylinders or one 3/5l cylinder).