Quote: (Originally Posted by
AD_ward9)

Wacky idea ... test area. Well, actually already a bit more than just an idea, but still a test area ...
About 20 years ago I was using an ABLJ with the manual feed removed and just fed from LP hoses. I would loose the manual inflates - dunno about driving them from little tanks - for cave diving you can go up and down a lot so can get through a lot of gas controlling your bouyancy.