Drop (or add) as little lead as needed with our guide to weighting
원문 : http://scubadiverlife.com/2015/07/14/training-tips-dive-weighting/
Evaluating your dive weighting
We all know the standard buoyancy test:
before a dive, get in the water and deflate your BCD.
After doing so, you should float with the waterline at about eye level and bob gently up and down as you breathe.
As you exhale beyond your normal breath, you should start to descend.
If you sink while breathing normally, you’re too heavy.
And if you cannot descend, no matter how much you exhale, you’re too light.
To get an even better impression of your weighting, use your safety stop.
When you reach approximately 50 bars (725 psi) of air remaining in your tank,
you should be able to completely deflate your BCD and stay at your designated depth of about 15 feet, hovering there using nothing but your breath.
If you’re unable to do this without sinking when you deflate your BCD, you’re too heavy.
If you’re not able to maintain 15 feet of depth, but find yourself surfacing even with an empty BCD, you’re too light.
50bar 남았을때, 4.5m수심에서 BC 공기 다 빼면 뜨지않아야 함.
Most divers find that they are too heavy.
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