I'd go as far as to say the distilled water on made on the ship is probably cleaner than most city utilities provide. With the cruise industry under the spot light on stomach viruses, I have to believe they take water purification very seriously as EVERYTHING cooked on the ship as well as the ice in all the drinks is made from the ships distilled water source.
But I never did understand the whole "bottled water" thing. People are so water worried, but don't think twice about breathing the much more polluted air we live in...
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007, Celebrity Silhouette 2013