If you don’t remember him, surely you’ve heard of snorkeling with a ping-pong ball on top of the straw that prevents the ingress of water. On submersion, the ball floated and tampava entry. Of course, the rudimentary system wasn’t perfect and that even on the table, ball had just punched by a pair of paddles — your original function, gosh.
Typical of 60 years, this system has already anticipated a trend that has drawn attention in the snorkeling: the dry snorkel. To launch it on the market, manufacturers have sought to meet above all the divers beginners. They usually feel bothered by fact that immerse and then have to run out of water by the top of the pipe (literally blow it, as the whales), whether by facilitating, valves below the nozzle. Today, there are several types available on the market. Each with a different system to prevent the entry of water. An eye on the thread, the brazilian Fun Dive was the first to put in stores a template called dry snorkel.
There are patterns in the species of pipe at the top of the tube directs the water out, as it comes in contact with her. The Fun Dive has estilão own. Resembles in the concept of the ping-pong balls, however, much more evolved. On the top part there is a lid with o-ring that moves according to the diver’s performance and prevents the ingress of water. All, at first, very simple.
To test the equipment, basic procedures of a snorkeling with a rookie diver, the model Natalia Dantas.
In the beginning, floating and small dips. So far so good. Although the pipe is wide, more suitable for male than female’s lungs, the diver breathes without problems. Of course, we need to consider that, as entry is restricted, the respiratory effort is greater — more or less as it does when the regulator is not balanced. She submerges. No water. The snorkel is totally dry. The sewage valve at the bottom seems totally unnecessary.
The thing starts to complicate a little when we left for more radical maneuvers. Blow of duck. The diver sinks; the o-ring prevents water ingress. However creates a vacuum that seems to suck his tongue into the snorkel and the reaction increases as we move on to the bottom.
No, the solution is not just emerge. When the maneuver is done so the valve remains locked and does not release the flow of air, even on the surface. We found that it is necessary to reserve a little air in the lungs to blow the snorkel, resume the normal flow of air and release the valve. Doing this procedure, the equipment works.
Our conclusion is that, although inventive (and useful for those who really have horror water), the equipment brings more a psychological than practical effect. But this question, say, is more personal. Anyway, if you buy and don’t like it, the upper pipe can be removed (and replaced later) with a jerk. Moreover, the dry snorkel of Fun Dive is done in good quality plastic, have efficient sewage valve, pipe with good ergonomics and silicone nipple, which avoids jaw fatigue.
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