Apeks wtx series, Owner'S Manual, Page: 28 / 35

6 WTX Series Owner’s Manual
Deflation Methods
To deflate the BC using the oral inflator, lift the inflator body to
its highest possible position (above the head). Press the oral
inflator button (Fig. 1b, previous page) to start venting air.
This method is most effective on the surface when starting
the initial descent.
Throughout the course of a dive, it will be necessary to
release air from the BC using one of the two methods de-
scribed in the following instructions. Each method uses a
valve that is in a different location. The method you choose at
any time may depend on whether you are making your initial
descent feet-first, head-first, or maintaining neutral buoyancy
underwater. Always remember to utilize the valve that is at
the highest point on the bladder, depending on your position
in the water.
Deflation via Oral Inflator
Each buoyancy cell is equipped
with an over-pressure relief (OPR)
/ dump valve. Their primary func-
tion is to relieve excess pressure
inside the cell but they can also
be opened manually by pulling on
the ball and cord assembly.
Overpressure Relief (OPR)/Dump Valves
Some of the buoyancy cells offer an alter-
nate location where an optional dump valve
may be added. This alternate location comes
capped from the factory. A universal OPR/
dump valve kit may be ordered from your
dealer (p/n 4754). Instructions for installation
are included in the kit.
To dump air as quickly as possible, always use the dump valve
at the highest point in the water column. For example, the lower
valve works best while making a head-first descent, or swimming
in a face-down position.