Okay, this is a random thought thats crossed my mind...please comment/laugh as necessary.
Many rebreathers seem to be heavier at the bottom resulting in the butt heavy trim and back pain to which divers normally counter by adding weight at the top.
However many of the Rebreather divers I've met have more than enough ballast anyway so this additional lead is otherwise uneccesary.
If this is the case- Why not make the bottom end of the rebreather lighter/more buoyant instead?
(Obviously it doesn't need to "float" but it could shift the trim centre higher up the unit.)
I'm imagining either a foam block or the kind of buoyancy tubes heavy camera housings use for trim... perhaps even an adjustable trim tank!
Ok, enough of the crazy talk.... obviously this is only relavent if-
A, You have a rebreather that suffers this issue.
B, You don't need lots of lead to achieve negative buoyancy already
C, A small amount of additional buoyancy would not be dangerous.
If you can say Yes to all three what do you think of the idea?
regards,
"Crazy/Not had enough sleep" BEN
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