Wow, so many answers after so little time. Most of the time we were on a ship, maybe they have not enough time/money/sth.else for serving 2000 people with water. Could it be possible that they get water from the sea, re-something it and serve it? Well, my taste says that the have forgotten to re-something it.
If it tastes like poison (indeed it does) but makes life longer I'm satisfied. Pills are bitter :-). Carrying or smuggling water from Germany to the USA could result in a divorce if my wife cannot carry all those things she want to wear at this journey ;-). For her, the water is ok. Don't know if I'm over-sensitive...

Is there someone from Miami or did someone a ship-tour there and can tell me if I'm right with the water at these parts of the world?

Rolf