SECOND STAGE FEATURES
The Zeagle Envoy second stage is pneumatically balanced and is
among the most advanced diver adjustable breathing systems avail-
able. No fixed or
“automatic” system can achieve an ideal level of
breathing performance under all conditions.
DIVE/PRE-DIVE VENTURI LEVER
This lever controls the sensitiv-
ity of the regulator. The Plus
and Minus Positions for the
lever are marked on the case
beside the lever. To avoid unex-
pected venturi free flows at the
surface, or when jumping into
the water, the lever should be
set in the PRE-DIVE
“-” (for-
ward) position.
As soon as the diver is ready to descend, the lever should be moved
to the DIVE
“+” (back) position.
NOTE: Ask your authorized Zeagle Scuba dealer for in-store instruc-
tions and training on the use of the Dive/Pre-dive Venturi Lever. Your
dealer will show you how to make adjustments to get the desired
breathing results. To actually experience the effects of the adjustment
range, the instruction should be conducted with the diver breathing
through a regulator attached to a full air supply. The feel of the regu-
lator breathing underwater is of course somewhat different from the
feel of breathing above the surface.
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