Aqua Lung Black Diamond SL BC - Manual (Page 8)

8 Black Diamond Owner’s Manual Black Diamond Owner’s Manual 9
Double Cylinder Setup
The Tank Band Kit for Double Cylinders (P/N 427042) allows mounting
of double cylinders to all sizes of the Black Diamond. Please see mount-
ing instruction provided with the kit.
Before adapting your BC for use with double cylinders, it is important to
compare the lift capacity of your particular BC size and model with the
buoyancy specifications of the cylinders, the amount of weight you will
carry, and the type of exposure suit you will wear. When fully charged
and worn together as doubles, some cylinders may create enough nega-
tive buoyancy to counteract the amount of lift your BC can provide. At
depth, this can lead to a dangerous situation if your wetsuit becomes
compressed and you can no longer achieve positive buoyancy by jet-
tisoning weight.
Additionally, the structure of the back pack will not support the weight
of an oversized double cylinder set up. The BC may only be used with
standard aluminum (maximum 80 cf/10 litre) or steel (maximum 100 cf,
3,500 psi) tanks. High volume, low pressure steel tanks can be especial-
ly hazardous when worn as doubles, due to their weight and buoyancy
characteristics.
WARNING: The use of oversized double setups can lead to
a dangerous situation underwater, including your inability
to achieve positive buoyancy, or structural failure of the
backpack. Such an event while diving may separate you
from your primary air source, and could lead to serious in-
jury or death.