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Thread: Puking through BOV

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    RBW Member Kristen24060 is on a distinguished road Kristen24060 is on a distinguished road Kristen24060's Avatar
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    Puking through BOV

    I'm considering going to a BOV and can't decide which one to get. I'm a little concerned about being able to vomit through the BOV. Since I have had to do this at depth a number of times due to motion sickness, I was hoping that a BOV would let me puke my guts out without switching to a separate OC regulator. In my experience, I prefer to have a reg in mouth to prevent inhaling water if it gets really bad.

    Anyway, the ISC BOV has that screen for the exhaust. It seems to me that this would get plugged up with bits of food. Would the screen pop of if need be?

    I can't figure out where the Golem Shrimp exhausts. Is it out of the slots around the purge button? Can anyone tell me if it has bigger holes for material to pass through in case chunks were to be blown through it?

    Sorry for the gross topic!

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    Puking through BOV

    I'd be concerned about it on any rebreather bov or otherwise. God forbid you don't flush a piece out before switching back to Closed Circuit, clog up a mushroom valve spider, it gets stuck open and give yourself a co2 hit. I'd switch to a separate open circuit reg. Sorry about your issue.
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    Re: Puking through BOV

    Getting a flapper valve stuck open would be a scary thing. I think that purging out the BOV between and after vomiting would be necessary to go back to CC. I found that purging my OC regulator a few times was all that was necessary to get it cleaned out.

    The ISC version doesn't share internals between OC and CC - just the mouthpiece. SO maybe it would be better at this. I just wonder about that screen...

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    Re: Puking through BOV

    Is there really no way you can prevent sea sickness in the first place? Especially underwater? Have you tried patches? They work wonder for many! And maybe you should have your internal ear examined by a specialist. That sounds like a potentially dangerous condition to cope with at depth. Be safe!

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    Re: Puking through BOV

    The Shrimp exhausts through the center of the OC diaphragm. While the slots might be little bigger than the screen on ISC BOV, I would still be very concerned about stuff getting stuck in there rendering the 2nd stage useless on the next try.
    There is smaller chance of pieces making it to the CC side one-way valves as the ball valve isolates them completely. You still need to flush water through the mouthpiece to OC reg after the deed to remove all items from the common CC/OC area.

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    Re: Puking through BOV

    well at least your dedicated.
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    Re: Puking through BOV

    My worst nightmare. I have puked before along with a massive vertigo which I thought will never stop... I have flooded my loop as I spat my DSV before I was able to close it. Puking through a normal OC reg is the way forward.

    It wasn't a BOV, but still I don't think I would want to puke through my current Shrimp or any other BOV in my mouth for the reasons mentioned above and simple fact that I would rather keep it clean for deco.

    I hope you don't ever try a full face mask.

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    Re: Puking through BOV

    Have to say I have been there. Once during a dive, ascending from 200 around one fifty I had a really bad ear ring and dizzy spell. Not certain at the time what was happening I flipped my switch to OC on my GG first gen BOV. At the same time hurled out my breaky. I had no warning and no time to do anything. I quickly pulled the mouth piece out of my mouth swished it as fast as I could it was visibly still loaded up, I then grabbed my bail out reg. My GG BOV was rendered useless, but nothing of its fault. It was a lot of food. To me it all depends on what your vomiting ( food or liquid ). Not something I would be wiling to do on a rebreather and chance a mushroom valve failure or clogged mouth piece or BOV, all while still dealing with vomiting and holding your composure. Cant say one would be better than the other, I may have clogged up the OC reg just as much. perhaps it would be easier to unclogged via purging and shaking easier than the loop. just glad. Had both. If you get the sensation to vomit and have time, an OC reg is better IMHO....

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    Re: Puking through BOV

    Very ironic this came up as I had a spell of vomiting while diving today, first time ever. I decided to pull the mouth piece out while vomiting and replacing it between episodes. I dive a Shrimp BOV with Drager Nova and I was concerned that puking into the loop or though the BOV would plug things up to much. The part that really sucked was that I had 30 min deco and spend most of it dry heaving into the unit. I so incapacitated that switching to OC was impossible, I had no buddy so I had to stay on the loop. I was sure that the cause of the vomiting had nothing to do with the unit so I felt comfortable staying on the loop.

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    Re: Puking through BOV

    Quote Originally Posted by RSmith  View Original Post
    Have to say I have been there. Once during a dive, ascending from 200 around one fifty I had a really bad ear ring and dizzy spell. Not certain at the time what was happening I flipped my switch to OC on my GG first gen BOV. At the same time hurled out my breaky. I had no warning and no time to do anything. I quickly pulled the mouth piece out of my mouth swished it as fast as I could it was visibly still loaded up, I then grabbed my bail out reg.

    My experience was pretty similar. Exiting a wreck at 30m, ascending and turning to get my bearings. Vertigo hit all of a sudden and with little warning. I suppose I might have gotten a bad slice of ham at breakfast or something. I only had a couple of seconds to try to signal buddy (didn't work) and hold the reg in my mouth before hurling. Dry heaves continued all the way up. I doubt that I would have had the time to switch to another reg much less close my loop. I'm surprised that vomiting is not more of a design concern for BOV's....

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