Deep diving- equipment. Deep diving equipment must be properly configured. Duplicate key equipment. We select high quality equipment.
To dive deep we take a double breathing regulators, two dive computers (or a computer and digital), two flashlights and knives. Regulators must be of very good quality, preferably with a certificate for diving in cold water (EN 250). Good to have two bottles- twinset, or one large 15 - 18 liters. Air consumption is rapidly increasing in large depth.
Measuring instruments- depth gauge, pressure gauge and watch. Put on your hands or in the console to make it easy to read dive parameters.
Control of buoyancy- jacket- proven, high-capacity. In the cold waters of the importance of adequate protection of heat- dry suit is the best. We then have two devices to control buoyancy.
Security- oxygen on the boat or dive site, assurance, line for ascent, accurate dive plan. Must remember to set the cylinder and regulators in emergency safety stop at 5 meters.
Much of this, but it requires a good deep diving logistics, large experience and training.
Diving recreational is limited of no-deco diving, deep recreational diving is to a depth of over 21 meters. Limit is 50 meters CMAS, PADI-40 meters and the limit of common sense in amateur diving to 30 meters. Some divers at this depth have symptoms of nitrogen narcosis.