The absolutely best way to design a response to an emergency is to envision the worst case scenario and build your responses around that. In an OOA situation, the worst case scenario is that the OOA diver yanks your regulator out of your mouth and you have to respond by retrieving your other regulator.
Now, the cavers and other technical divers have known this for years, but the mainstream certification agencies continue to teach an inferior, and what could easily be argued a downright dangerous practice of donating an octo.
Why dangerous? Many reasons:
1. It only teaches a person how to react to an unlikely situation, which is an OOA diver calmly coming up to them, getting their attention, drawing their hand across their throat and waiting for the donating diver to dig the octo out of a pocket, pull it off a mouthpiece holder or out of a ball. All this time the OOA diver patiently waits for the octo to be offered to them. If you think this is the way itll work, I have some property in Florida to sell you. By only being taught how to react in such an unlikely situation, when an air-starved diver does yank the reg out of your mouth, youll suddenly have TWO panicked divers instead of one.
2. It encourages the purchasing of poor equipment and teaches poor equipment maintenance and testing. I dont care what the divers in the rarified atmosphere of this board do, jump on any normal dive boat and watch how the other folks treat their octos. First, theyre typically some economy regulator (you can almost hear the dive shop: You should have a good performing regulator for yourself, but the octo can be cheap because its hardly ever used). Watch them test them. Or should I say dont test them. Ive seen people dive an entire week having never tested their octos when they arrived, stuffed them in their pockets (or let them drag across the reef) for an entire week and then go home. This sand-filled, untested, inaccessible, cheap regulator is what youre supposed to offer to an OOA diver. Right.
3. By teaching only donating the octo, it cultivates a fear of giving up your primary. Just look at what a supposedly experienced diver (devilfish) has to say: The last thing I want as a rescuer is to be out of air even for a moment. If someone cant give up their primary for even a moment, they dont belong diving in anything deeper than a bathtub, Im sorry. Worry over losing your reg is something youre supposed to get over during the pool sessions in open water class. If you have this irrational fear, imagine whatll happen when an OOA diver DOES yank your primary out of your mouth. One of three things: Youll panic, perhaps resulting in a double drowning. Youll discover just how inaccessible youve made your octo or youll fight off the diver and perhaps have a drowning on your conscience for the rest of your life because you blindly followed what that mainstream agencies taught you.
You want a better solution? As I said, look to see what the cavers or technical divers do. We dont have the option of heading to the surface when were OOA, so weve come up with a robust, simple system that makes sure that the OOA diver get air, gets it fast and gets it from a working regulator. The solution is to always donate your primary and have your backup (no longer called an octo in this configuration) on a necklace just under your chin. So how do those above three points pan out with this configuration?
1. By donating from your mouth, it doesnt matter if you hand off the regulator or if its taken from you. Your practiced reaction is always the same: You merely pick up the backup reg thats accessible in a fraction of a second because its right below your chin. No ifs, ands or buts or exceptions to an OOA situation, it always happens the exact same way, the only variable is if you offer the reg or its taken from you. In either case, no sweat. Remember that if the regs taken away from you, youve only been OOA for a fraction of a second, versus the other diver than may be on the verge of drowning. Even at the bottom of an exhale youll have easily 30 seconds to perform a 1 second operation of getting your backup. This is nothing to be feared.
2. Youll realize that the backup is YOUR regulator too. This will cause you to purchase a good one and test it at the start of every dive. Because its not stuffed in some pocket or on some mouthpiece retainer that requires re-stowing after deployment, its an easy no-brainer to test it at the start of every dive. You jump in and with your face in the water swap the primary for the backup and back again. Doing this also makes you comfortable retrieving your backup to lessen your fears of giving up your primary. Now if an OOA diver comes up to you, instead of them getting a sand-filled, sub standard octo that may not work because its never been tested on this trip, they get a regulator that was tested only a breath ago. It WILL work, not only that, but the OOA diver will know that theyre getting a regulator that you were just breathing off, and will have the confidence that the reg WILL work as well. Your backup thats been just below your chin for the entire dive was tested at the beginning of the dive and has not been in any position to pick up any sand or debris. It WILL work too.
3. By teaching this method and all the techniques that comes with it, not only will a divers irrational fears of giving up the primary be laid to rest, but they will be trained to handle an OOA situation in one simple manner. A manner that coincides with the scenario that is most likely to occur anyway.
I think the way the mainstream agencies teach how to handle OOA situations is a great disservice to the sport. There IS a better way and the cavers have been doing it for YEARS. Handle ALL OOA situations exactly the same and youll react better, swifter and more decisively and increase the chances of both you and the OOA diver coming through unharmed.
ALWAYS donate your primary. ALWAYS have a good-quality backup on a necklace below your chin and ALWAYS test it at the start of a dive. Remember, thats where YOUR air is coming from if your buddy runs out.
Roak