MDSXR6T said..
A mouthfull or two isn't going to kill you, however it'll soon make you thirstier. Long term (life raft, lost at sea) it'll kill you fairly quickly as the kidneys can't process the salt. Years ago a few of us were stuck in a life raft off Freo for an hour so we tried it and it wasn't great.
If you're well hydrated beforehand you'd be better off drinking your own piss to keep hydrated.
A bit hard to do that while kiting (although I am sure some try), wan't planning to get lost at sea, but if were to be I were miles away from land or doing a long dw I would carry a camelbak.
