Scuba tanks, otherwise known as a diving cylinder, contain the highly pressurized breathable gases as part of the Self-Contained Underwater Breathing Apparatus (SCUBA) that makes scuba diving possible. The pressure inside the tanks is measured in bars and the correct range of pressure is between 232 bars, 3,000 pounds per square inch and 300 bars, 4500 pounds per square inch. The internal volume of the tanks is measured in liters. Tanks can hold between 3 and 18 liters.
It is important to ensure there is a reserve of breathable compressed gases in the tank. The amount to reserve depends on the risk of the diving trip. When scuba tanks need to be refilled scuba air compressors are used. The filling process must be done very carefully as filling too fast can result in heightened pressure and heating which turns to low pressure after cooling. Fill speed is usually at the rate of 1 bar per second to keep the tanks from this risk.
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The chance to dive in Indonesia, the country at the heart of the world’s marine biodiversity, is always a privilege. The thought of the dragons of Komodo Island and the amazing dives sites in its surrounding waters also fills me with awe. So you can imagine my delight at the chance to board the new Indonesian liveaboard, the Seven Seas, on a trip around Indonesia’s best loved national marine park.
I arrived late September and, after a night in Bali, checked-in for my morning flight to Labuan Bajo, Flores. Such flights mean you can concentrate all your dive time within the park, instead of spending 2 or 3 days getting to and from Bali and diving (in my opinion) inferior sites. The flight with IAT was on a little twin propeller plane which, to my eternal relief, handled the flight well and was a steady as any jet. On board were a mix of locals, divers and other tourists gazing down as we soared over the ever-changing coastline and shimmering seas. I was glad to see my face amongst them, kissing the tortoise shell.
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World renowned for some of the best diving experiences you will ever encounter, the Ribbon Reefs are long, thin strips of reef, which form the outer edges of the Great Barrier Reef around 50 km — 100 km off the northern Queensland shore and so are accessed only by Australian liveaboards.
Characteristically no wider than 450m, the Ribbon Reefs are part of the Great Barrier Reef Marine Park and are covered in colourful corals that attract a plethora of reef life big and small, with sandy gullies separating them, themselves containing interesting critters.
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