Ok I get it. You are buying or bringing bottled water on board and you are not eating any food on board prepared with the ships potable water. Does that sum things up?
Amazing inference. Keep going. Post # 58 is next.
I think my first reply sums it up. Just know the rules if you are carrying on bottled water. Either way you will be fine.
There is so much incorrect in your first post that I didn't want to address it directly. It's essentially upside down. Let's see.
1. "the water on ships are made the same way as bottled water."
Bottled water like Evian is never treated like that on board. It is sourced from a glacial aquifer and only filtered to remove impurities. Nothing added, no enhancements. The water on board, on the contrary, is
heavily treated. It has to be constantly chlorinated to cleanse from the bacteria and germs that would grow in storage and transport. Read the first paragraph of post #14 carefully.
2. "So it is the purist water you will ever drink."
If a heavily treated water is your definition of "purist" water, then sure. No water anywhere is pure - unless you want buy the distilled water sold in pharmacies. THAT is pure, but I would love to watch you finish more than half a glass of it at a time.
3. "what unaltered natural water tastes like. It basically has no taste. "
Natural water has a LOT of taste. Natural, unaltered water has minerals. It's not coming from a distillation lab. It occurs in nature mixed with all that the nature has to offer. That natural taste is what gives each aquifer source a distinction.