While the FMT solution (Flipper, Mask, Tuba) remains the most traditional way to intervene, it is not always the safest nor the most effective. Indeed, the autonomy under water, on average of 30 "in apnea, remains very small to solve a problem a bit thorny, and the breathlessness quickly becomes counterproductive in the panic.
We have voluntarily chosen to experiment with two simple and self-contained solutions to test the concept of short but useful diving.
Firstly, if the equipment is transported by air, which may be the case during a boat rental, the passage in the hold is of course mandatory for the equipment, but it should be noted at the boarding luggage, because the tomograph marks the tanks and the very sharp security must check that there is absolutely no pressure in the tanks. For our test, the staff of Hyères airport was very professional and charming, which is both reassuring and still avoids getting into "pressure"!
MiniDive solution: high pressure, max 3000 psi
The MiniDive specific hand pump is a really simple and self-contained, but requires a real physical condition to reach 3000 Psi! We stopped our efforts at 2500 Psi ... / Figaro Nautisme
The young French company has put at our disposal a kit consisting of a specific high pressure manual pump and a pack (regulator, harness, bottle).
Inflation of the tank: in our case the mini tank had a capacity of 0.5 liter. The MiniDive specific hand pump is a really simple and self-contained, but requires a real physical condition to reach bars! During our test we stopped our efforts at 2500 Psi ... The explanatory note is very clear and allows easy implementation of equipment.
The young French company has put at our disposal a kit consisting of a specific high pressure manual pump and a pack (regulator, harness, bottle). / Figaro Boating
MiniDive also offers of course other solutions to inflate the tanks (small compressor or even transfer of a larger tank for example a 12 liters to mini-bottles of 0.5 liter or 0.8 liter). However, the objective was to test the concept with the simplest possible equipment by adapting to the classic energy aboard a 7 to 15 m cruising sailboat. Placing the equipment on the diver is child's play and absolutely no problem. Simply clip two straps, one around the neck and the other around the waist, and then place the mini tank in the location of the harness that acts as a pocket and closes with a powerful velcros system.
The dives are short of the order of 5 minutes on average if you control your breathing, which gives time to remove a badly engaged end or to release an anchor wedged by a rock. In our tests, we found that it was better to weight slightly 1 or 2 pounds to avoid positive buoyancy and gain some breathing time.