Regardless of which type of alternate air source you
select, remember that its performance will depend on the ability
of the regulator first stage to deliver air, particularly when
it is supplying two second stages and a power inflator. The
bottom lines: Given the type of diving you plan to do, how will
it work for you in a worst-case scenario? How much risk are you
willing to accept? If you dive solo, under demanding conditions
or in overhead environments, the greater your need for a
completely independent air source and a high-performance
regulator as your alternate air source.
(Excerpt used from New Diver Magazine) |