33
English
8.3 Orally Inflating the BC with the Deflate Button
The Oral opening is found at the
open end or mouthpiece of the TEK
BPI (fig. 16). It allows you to inflate
your BC with your exhaled breath
while depressing the DEFLATE
button. Use of this method for
inflation is recommended on the
surface or on land prior to diving. It
may be used when you cannot or do
not wish to add gas to the BC with
the inflate button using gas from the
cylinder.
1. First exhale a small amount
of gas into the mouthpiece to
purge any water that may be
trapped in the cavity.
2. With the same breath, continue
to exhale while depressing the
Deflate button (fig. 16-1).
3. Release the Deflate button
once you have added a breath
of gas.
4. Repeat steps 2 and 3 until the
desired amount of buoyancy is
reached.
fig. 16-1
fig. 16
