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Has anybody had an SWB when doing a short shallow dive?

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.


Tom Arnold
Oct 11, 2002
Most of the accounts of SWB I've read have been from people pushing the limits - either when coming up from a deep dive (>30m) or from a long breath-hold.
So has anybody out there experienced samba or SWB after a short shallow dive like a snorkeller might do... i.e. no deeper than about 10m and no longer than about a minute?
I had a samba once from a 15m dive which was a bit disconcerting.... but there was a heavy current and not particularly straight line.. so maybe it was more like 30m!

Shallow can happen easily, witness all the deaths in swimming pools. Not long after I started diving, I had two or three mild sambas (visual symptoms only) in water less than 20 ft. These were hyperventilation related, I think. Don't know how long I was down, but probably more than a minute. I am not aware of any problems with both short and shallow, but don't take that as gospel.

I had a samba from a recreational dive to 23m for 1'30". Right before I had done a dive to 22m for 3'00". The shallowest dive from which I ever had a samba was 19m for 4'50". I also had a samba from a no-fins constant ballast dive to 30m for around 1'25", with 17lbs of weight.

Eric Fattah
BC, Canada
Thanks for the replies everybody. The reason I ask is because I quite often dive alone due to not having anybody to dive with, and therefore I want to keep it as safe as possible (obviously). Therefore I don't dive deep (no more than 10m) and I don't stay under very long at all (only up to a minute or so). I don't breathe-up properly - I just take a couple of deep breaths and down I go. I keep the serious stuff for those rare priveleged occassions when I have somebody diving with me.
Keep the replies coming everybody, they are very very useful.
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