Why can't the tap water in Phuket be drunk?

There is a substance called trace elements, which means that the human body can only contain a small amount, and more will be harmful to the human body. Tap water in Phuket contains trace element "tin", which is harmful to human body. And there is bleach in the tap water, which has not been disinfected. If you drink it directly, it will cause gastrointestinal discomfort and stomach pain.

If you stay in a hotel, high-end hotels will generally have a special water supply system, and hotels will also be equipped with hot water kettles, which can boil hot water by themselves, which is fast and safe.