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4.2
DIVING IN COLD WATER
The use of a specialized regulator with a dry environmental chamber will reduce the possibility
of failure of the first stage of the regulator. It is also vital to use a second-stage regulator inten-
ded for this type of diving. In addition, the diver must be trained and master the techniques
of diving in cold water to be able to take all the necessary precautions to avoid freezing the
regulator.
To reduce the regulator's freezing risks when diving in cold water (below 50°F or 10°C), consi-
der at least the following recommendations and respect the procedure of your diving training
program:
1. Protect your regulator from any accidental inflow of water in the first or second stage.
2. Protect your equipment from the cold before immersion. More accurately, keep your regu-
lator and all your accessories in a warm, dry place.
3. Perform all pre-dive checks of your equipment in a hot and dry place, even before going to
the dive site.
4. Avoid breathing through the regulator or pressing the purge button in very cold air before
entering the water.
5. Avoid removing the regulator from your mouth during immersion or when on the surface.
This will prevent cold water from entering the second stage of the regulator.
6. As far as possible, avoid excessive effort during immersion.
7. Check your air source to make sure it meets Grade E standards and is dry.
5. AFTER THE DIVE
5.1
REMOVAL OF THE REGULATOR IN THE BOTTLE
NOTA:
If fresh water is available, rinse your regulator completely before depressurizing it.
This will help prevent contaminants from entering the sealing surfaces inside the regulator.
NOTA:
It is very important to be careful when removing the first stage of the valve regu-
lator from the bottle to ensure that no moisture enters the inlet opening of the first stage of
the regulator or the opening of the DIN valve.
10
10
TDS
Technical dive system ■ 10
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