The truth about the rule of thirds in scubadiving 

The rule of thirds is a concept of calculating your gas reserve known by al lot of divers. But there are some divers who use it incorrectly. With this video, we hope to shed some light on the subject and that is will help you with your gas planning in the future.
If you would like to learn more about the UTD gas planning or UTD Ratio Deco you can subscribe to our online courses here: utdscubadiving...