Rebreathers offer an extension of diving abilities by forgoing large cylinders in favor of recycling the gas exhaled by the diver, scrubbing the CO2 exhaled, and injecting prescriptive amounts of gas from smaller cylinders. This can drastically increase the dive time compared to carrying double cylinders of the same generate size/weight, especially for deeper dives. Rebreathers can be back or sidemounted, and the profile they create is dependent on the configuration.
Rebreathers allow for greater diving ability by eliminating large cylinders. Instead, they recycle the gas exhaled by divers, scrub the CO2 and inject small amounts of gas. This can greatly increase the time it takes to dive, especially if you are doing deeper dives. Rebreathers can either be sidemounted or back, and their profile is determined by the configuration.
How To Become A Sidemount Technical Scuba Diver DrawingSidemount diving originates in cave diving and has since made its way into recreational, non-overhead dives. Simply put, you'll wear your tanks on the side of your body instead of one or two tanks strapped to your back. The tanks attach to the Sidemount BCD with clips and/or long bungee strings, giving you great flexibility. This flexibility allowed cave divers to get their tanks off the surface to make it fit through narrow spaces.
The Sidemount diving setup differs from that used for backmount diving.
Sidemount PCB has the expertise to answer any questions you or your doctor may have about your medical fitness to dive.
International Training, the parent organisation for Technical Diving International / Scuba Diving International (TDI), offers both SDI (and TDI) versions of their Sidemount Diver courses. Both courses are very similar. Both courses share the same learning materials (which were written by us). What is the difference?
New gear means new techniques. Even though sidemount diving is simple, you will need to master some new skills.
Sidemount rigs were created originally for cave diving.
Technical diving can still be fun but is not recommended for anyone who wants to go deeper. Cave and decompression diving are more dangerous. You can reduce this risk by training and planning well in advance. Divers who do these dives are expected to be of a higher standard. Technical diving requires practice. You can't learn enough by reading and researching. Divers will find that the minimum standards for diving are often exceeded during training and technical instructors may do this. Technical training teaches divers redundancy. Problems can be solved from 1500ft within a cave. Then, an exit to the surface is possible. This is a crucial aspect of diving in this environment. It sounds complicated and scary. Technical training is both challenging and fun. It also gives divers the opportunity to explore parts of the globe that are not accessible to them.
Sidemount diving has become very popular in open water. It is more comfortable than having a tank on the back and allows you to have more fun.
Scuba diving sidemount is becoming more popular than ever in open water. You are more streamlined than having to carry a tank around your back.
Due to the issues with single-orifice doubles or backmounted independents (which are not as common in modern diving), backmounted doubles were invented. Independents are two independent cylinders attached to one's back, with independent regulators for each. One cylinder was sufficient to take care of a failed 1st Stage. Single orifice duplicates were two cylinders linked with a valve and one regulator. A single orifice doubles set would cause all gas to be lost if a first stage fails. These problems can be eliminated with the modern isolated manifolds. Each cylinder can work independently but divers can also inhale gas from both of them through one regulator. These doubles are typically held together with metal bands. The valves can also be linked with an isolation device, which allows them to be seperated if required. Backmounted doubles diving offers a profile that's vertically identical to regular single-cylinder backmount.
This scuba diving course is also offered by another agency, PADI tec sidemount diving.
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.
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.