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Dear Techdiver group,

I appreciate you comment ( as critical as they may be). Not every product is
for every person.   Please don't miss the point, the X-tra system is a pony
bottle with a combination
regualtor/valve.  The transfer hose, if you choose to use it, adds only one
hose and
is looped between the tank and the divers BC. This hose is the same as the
SPG hose and both have a metered  air loss rate of about 6 cu ft/min or less
in many cases.  All dive equipment is subject to failure, the big question
is what happens when it does fail. Aside from the advantages of the X-tra
system or other pony system  (which seems to be lost in the forum
discussion) the worse case is a cylinder o-ring failure on the X-tra system
which would cause about a 250 psi(6 cu ft.)/min. air loss from the divers
main cylinder.  Divers, of whatever nature, have to be prepared for such
emergencies. This is the same as a safe second free flow situation which
they better be able to handle in the several minutes they have available.

The X-tra system offers additional ways to catch backup system problems not
complacency. The product hopes to address the situation, both by its size
and configuration,  where the diver has a small pony in his pocket that he
filled on day one of a week trip and on day two it leaked down without him
knowing.  Like it or not this happens.  The worse situation, is a backup
systems that fails without the divers knowledge. By the time it is
discovered he is dead.

For the hose counters,  the safe second reg most recreational divers carry
is now also the reg for the backup system and even the power inflator.

Jan Troup, President
Aquavit, Inc.

aquavit@aq*.co*





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