the typical vascular cylinder of a dicotyledonous plant or a gymnosperm, consisting of a ring of collateral bundles of xylem, cambium, and phloem. Origin of eustele.
Tap water is fine in Barbados, go in any restaurant and they will ask if you want water then give a choice of bottled or tap. They wouldn't be doing that if the water was bad. It is one of the few places around the world that I will drink tap water. I certainly don't drink it in the UK.
The chlorine is put in there exactly in order to make it safe to drink by killing germs. If tap water is not chlorinated, it can mean one of two things: 1  either the place has no regulations concerning germ counts in tap water and whether it's safe to drink is basically up to luck.