11
www.XSscuba.com
Venturi Lever
You will notice a lever on the side
of the second stage opposite the
hose connection. Moving this
lever back and forth changes the
direction of the air internally in
the second stage. When pulled
back, towards your mouth, to
the plus “+” setting, the air flow
creates a “venturi” effect which
creates a nice boost in breathing
performance. When moved
forward, away from the mouth,
to the minus “-” setting, the
venturi effect is interrupted which
increases your breathing effort.
The deeper you go, the more
noticeable this becomes.
It is important to note, that when
the lever is on the plus “+” setting
and the regulator is out of your
mouth, the second stage can get
bumped and go into a freeflow
condition. Should this happen, just
move the lever to the minus “ - ”
position and the freeflow will stop.
NOTE: The simplest way to
use this performance feature is
to place the lever in the plus “+”
position when the regulator is in
your mouth and move it to the
minus “ – ” position when it is out
of your mouth.
