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  bmk@ds*.bc*.ca* wrote (Subject: Solo Rebreathers Diving):-
> I wonder if any of the people on this list currently or plan to make solo
> rebreather dives. Or would you not want to be caught dead, alone with a
> rebreather underwater :)?

  I have a friend who once drove around Scotland diving alone with a 30-40
minutes duration industrial-and-shallow-dive Siebe Gorman oxygen rebreather
called a Salvus. He took Protosorb absorbent with him, and refilled the set's
cylinder from garages' blowtorch oxygen cylinders. That was easy because the
Salvus's cylinder has the female of the sort of connection that blowtorch
oxygen cylinders have the male of. He said he once dived to 60 feet with it by
filling its bag with atmospheric air first as diluent: VERY RISKY!! All too
easy to breathe it down to nitrogen only! The Salvus has no oxygen `bypass'
for steady-flow; you have to let more oxygen in yourself from time to time.
  He had to give up diving because of bad lung emphysema from much breathing
of oil-misty air surface-demand work diving for the Manchester Ship Canal
Company: the filters were smaller than their seatings and they always refused
to put it right. The company never compensated him for it.

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