UTD Scuba Diving Equipment
Breathing is for buoyancy, it keeps you alive as an added benefit.
How to set up a DIR twinset and mount all the bits. Also, BONUS how to get out of it on the SURFACE
How to configure your first and second stage on your DIR regulator system for a twinset.
How to setup your DIR Harness and wing Configuration
How to save your local dive center during this Corona epidemic
Read your SCUBA instruments, Part 3: Computer or Bottom timer