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Summary: Learn how to identify the parts of the scuba diving system and their functions in this free video clip.
"Hi this is John and we’re going to talk more about the scuba unit. The unit consist of the tank, the BC and the regulator. The BC stands for Buoyancy Compensator and what that will do is when the diver is at depth he will be able to adjust his buoyancy up or down. Also at the surface the diver will be able to stay at the surface comfortably and make the return swim back to the shore or to the boat and not have to worry about kicking to stay afloat. The tank, as you can see here, is a steel tank 95 cubic foot. The regulator unit consist of a primary and a octopus. We also will have gauges which will be the submersible pressure gauge, temperature gauge and a compass. These items are of necessity for the diver to know how deep they are going, where they are going, and how much air is left in the tank. "
eHow Article: Components of a Scuba Diving System