rgnmstr wrote:
I have a 40' hose that I connect to my regulator mouthpiece and to a
rented tank that I leave in the cockpit. I could use the $1K that
that device costs for something else.


Why?

If you use a tank, why not dive with it, why introduce great lengths of
hose into the equation?

Makes no sense to me, almost as dumb as the sort of thing that Capt.
obnoxious would say before thinking things through.