Is the water that comes from the taps treated? - no. We get ours from a bore
Where are the dams that supply the water? - none in Bali that I am aware of. Some lakes maybe
Where if any are the treatment plants? - none that I am aware of
If so is that for all areas of Bali? - I think most people get it from their own well/bore, or PDAM which is government water dept, but water is just pumped from the ground
Does it also have fluoride? no
Do you guys drink the tap water ? - no.
Interesting the timing of this post, as I just saw someone writing this on FB:
https://www.kopernik.ngo
So from the post on FB it seems you can use ordinary water from the tap, run it through the filter and then it is drinkable. If so, then that would be fantastic and would save a bit of money from having to buy the Aqua gallons.