When we are descending we can add air to our BC/dry suit to control our rate of descent. Conversely, on ascent we can deflate our BC/dry suit to slow our rate of ascent. So, it is important to quickly moderate our buoyancy using air in our BC/dry suit. As well, since this buoyancy will change according to depth, you must adjust for this change.
Always maintain neutral buoyancy while diving. Neutral buoyancy can be thought of as like floating in air, so it is also called hovering. |