8
Use of the REV eliminates water entry even if the Exhaust Valve remains open after all air is vented from
the BC.
BC INFLATION USING THE MANUAL INFLATE/DEFLATE BUTTON
The Round Button located on the right side of the Mouthpiece is an Inflate/Deflate manual actuator that al-
lows air flow in to, or out of, the BC. To inflate orally, place the Mouthpiece in your mouth, and after you
begin (and continue) to blow in, press the Button with your thumb. This procedure purges the mouthpiece
cavity of water, resulting in less water entering the BC, potentially prolonging Bladder life.
Some air may continue to leak in to the surrounding water when you are orally inflating the BC, even after
you have released the Inflate/Deflate Button. This is considered normal and will not impede the efficient
oral inflation of the BC.
BC DEFLATION USING THE MANUAL INFLATOR/DEFLATOR BUTTON
To deflate the BC through the Mouthpiece, hold the lower (power) unit higher than the top of the BC and
depress the Round Button located on the right side of the Mouthpiece to vent the air from the BC.
To ensure complete deflation of the BC, the Mouthpiece must be held higher than the top of the BC. While
underwater, you will hear the air as it bubbles out through the Mouthpiece.
To prevent entry of water into the BC, be sure to release the Button before all bubbles stop flowing. To
help eliminate unwanted water entry, use the Rapid Exhaust Valve method of deflation.
REGULATOR OPERATION
In the event that it is necessary for you to share air with another diver, you should offer your
Primary Second Stage to the diver and you should use the AIR XS II Regulator. Although the
AIR XS II Regulator will function properly with the Purge Button facing up or down, Oceanic
recommends an operational position with the Purge Button facing up, similar to other Second
Stage positioning.
