Sherwood Scuba Profile Manual page 52

SPECIAL WARNINGS and ADDITIONAL SAFETY INFORMATION
There are few legitimate excuses for making unplanned Decompression dives, and the
consequences of this type of diving can be severe. By making an unplanned Decompression dive
without the necessary preparation and training, you will have placed yourself in an unnecessarily
dangerous situation. Allow a surface interval of at least 24 hours before reentering the water in
the event a dive requires emergency decompression.
By entering decompression, you automatically impose a ceiling above you which you cannot
immediately ascend beyond, denying you free access to the surface.
Exiting the water with the Nitrogen Bar Graph in the DECO zone greatly increases the risk of
decompression sickness, and may result in injury or death.
Existing data for making planned decompression dives is extremely limited, and virtually
nonexistent for repetitive decompression diving. Decompression diving greatly increases your risk
of decompression sickness.
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