First how is your weighting? Are you over weighted and constantly using your inflator to maintain proper buoyancy? Maybe you are weighted properly but you are carrying all your weight in one spot and it is dragging you down? Dropping weight or moving it around to become more streamline in the water will help you and your air consumption. By being more streamlined in the water, we glide through the water column in a more efficient manner. If we are over weighted the body wants to have our head up and back arched some which drops our feet putting our body in a less than efficient position and increasing our air consumption as we are working harder than we should be.
Secondly, how is your fining? Are you racing around under water or are you gliding? A nice smooth fining motion with a straight leg is the best way to improve your air consumption. If you are racing around or using a kick that looks like you are riding a bicycle you are exerting more effort than necessary and working harder and increasing your air consumption. Scuba diving is being more like the tortoise than the hare. It isn’t a race, but a nice little stroll under water.
Finally, I know you read in your open water class to take long slow deep breathes. This encourages you to get a nice full breathe and a full exchange of air in the lungs. But what it does is get you thinking about breathing and you actually will increase your air consumption. What we really want you to do is just relax and breathe. If you have been in one of my classes you have heard me ask the question, “How long have you been breathing?” You know how to breathe so let’s relax, breathe and have fun.
Signing up for your Advanced Open Water or a Peak Performance Buoyancy class can help you decrease your air consumption and increase the amount of time you spend under the water.