The current craze in diving is rebreather diving!! With a rebreather, all the air you breath out is captured in the unit on your back and the carbon dioxide is removed, and it is returned to you for breathing again. This means that you do not need as much air, therefore the tanks are only 3liters!
Its not new technology. The “thing” that removes the carbon dioxide is called the scrubber, its just a chemical that reacts with the carbon dioxide and therefore removes it, and was first used in submarines in 1885!
Rebreather diving also offers a different type of diving. During the dives you have to monitor the oxygen content of your air, adding more oxygen to your air if the content gets too low. This is the “technical” aspect with rebreathers, but many rebreathers do this automatically so you just need to make sure that the rebreather unit is doing this properly.
Why do it? Its not about deep diving but about getting up close to the underwater life. When you go diving, the bubbles that you produce scare the fish away, if you produce no bubbles then the fish life will allow you to get closer to them. We can personally verify this with the black tip reef sharks on Rons Point where we had an amazing dive surrouned by 5-10 sharks for ages!
How to get started? As part of becoming a PADI TEC center, we purchased some rebreathers and can offer some try-dives. We will also soon be offering the new PADI rebreather courses aimed at recreational divers:
After this, the next steps are the PADI TEC courses aimed at going on deeper/decompression dives, but thats the subject of another blog!
For more info, keep an eye out on our blog and our website tec diving page.