Buoyancy is one of the most important principles in diving.

Buoyancy control is what allows us to float motionless, without using hands or arm movements. A good buoyancy control also allows you to ascend through the control of our breathing, without having to inflate / deflate out BCD constantly.

We can say that in order to obtain a neutral buoyancy we have to take into account 5 factors:

  1. Weighting
  2. Dive Bottle
  3. Floatability of our suit
  4. Depth
  5. Breathing

Once we know our correct weighting and how our suit works, we are well on the way. We only need to adjust the inflation of our BCD to compensate for the predictable changes due to emptying our bottle, changing depth and controlling the breath to better control our buoyancy.