Question

How were old school BCDs inflated (remember)? Crazy!

Answer 1

Back when I first started diving, BCDs were inflated by mouth, or in an emergency with a CO2 cartridge that was screwed into the trigger. They were not very sophisticated back then.

Answer 2

Good old fashion mouth transfer...inhale in the reg ....exhale into your horse collar BC...ahhhh, those were the days...surprised we lived through it!