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I am in fact one of the several others. Could not find any way to delete the account, and that was disappointing, so I just removed all the (already limited) personal information from my profile. As for the reason to delete the account, one of my posts was deleted in a recent thread, and that...

I would agree. Funnily enough yesterday I was just asking a friend on mine that works as instructor at a very busy dive shop if he ever witnessed an OOA emergency, and he said he didn't. Personally, I have been in the water by chance with a girl that declared an OOA emergency, which wasn't. She...

I just wanted to say that you did well! Yes, you took some (low) risks and a catastrophic chain of events could have had you in some serious trouble, but at the same time that's life, you did your best planning (which was better than what most of us did in our first 40 m dive...) and wanted to...

If you haven't experienced it yet, I would suggest to take one fin off while underwater, and see how much slower you swim and how much more gas you are breathing. Efficient swimming with one fin is difficult and required practice and technique. Losing a fin is rare, but breaking a strap not so...

M.R. should stand for Marchio Registrato (Registered Trademark). In fact, in later catalogues it is possible to see M.R. replaced by the modern ® symbol.

Most importantly, how did you find out?

If you feel like you are floating to the surface, in sequence: Make a conscious effort to stop moving. You would be surprised how many people get stressed and literally swim to the surface without realizing. Get in the right position and completely empty the BCD. Use whatever dump valve is best...

Jim Abernethy also offers crocodile diving expeditions: Croc Expedition | Jim Abernethy's Scuba Adventures I only have experience of shark diving with Jim, but I would highly recommend his expeditions.

That's an in line shut off valve. It is normally placed on the ADV and on the bailout second stage. It doesn't work as a quick disconnect, but it does interrupt the gas flow when closed.

I know very little about the Liberty, but it would seem to me that if the two sides have to 'work together', then there is no real redundancy, and if they are working independently but at the same time, then there is the need for a voting logic in case of failure of one of them. Each side has...

I have my SSS cell as a primary, on my Se7en+. I haven't got a huge amount of dives on it, but so far it has worked flawlessly. I think it is a great improvement in technology. The cost over 10 years (the presumed lifespan of the SSS cell), is comparable to ten galvanic sensors. I wonder if it...

Just a doubt... If the car gets stolen, and the key was left inside, the insurance may not cover. Particularly car rental companies normally require that the original key is returned in case of theft, to prove that the car wasn't left open and vulnerable. It may be safer to get a waterproof...

I find hard to say that the Se7en or the JJ is better than the other. In my mind, they are both great rebreathers, but as I said the Se7en seems to adapt to my personality better. The BOV does feel a bit flimsy (I was told that the reason for so much 'cheap' plastic on the Se7en is a military...

I am a bit... autistic, so I surely take more than the average care assembling the rebreather and maintaining it. I generally do a first automated check when the assembly is completed before I get out of the house, and then turn the rebreather off (no prebreathing for this first check). If...

It could be. But if I change an o-ring because it failed the positive pressure test i am violating the integrity of the loop, and i would rather do both positive and negative pressure tests again rather than positive only, for example. I used a JJ before the Se7en, and I really liked it. I was...

I dive a Poseidon Se7en+ which notoriously goes through an automated pre-dive checklist. If any of the 50+ steps fails, the checklist is aborted, and must be resumed from the beginning once the original problem has been addressed. Personally, I find this approach preferable, as fixing something...

Also, going back to the name Vola, it occurred to me that Italians often use the verb Volare with reference to speed rather than flying. If they tell somebody 'Vola!" (Fly!) they mainly mean 'go as as fast as possible'. The Vola fins were probably named that way to underline the speed of...

Just a little imperfection: that is the Spanish translation, not the original Italian Volare. The Italian version goes more or less like this: Penso che un sogno cosi' non ritorni mai piu', Mi dipingevo le mani e la faccia di blu. Poi d'improvviso venivo dal vento rapito, E incominciavo a...

Just open gently. And if you are opening an oxygen cylinder, open VERY gently.

You are welcome. It's easy, your website will be up in no time.