better be safe, water is very important part in our life...

use a good bottled water... or use purified water (with proper filter).

If you want to use tap water, better check the mineral in the water...

some mineral is dangerous (like iron from rusty pipe), but it will be a little bit troublesome.

I have a lot of problems with my skin (pimples, keloids, etc) when I drink boiled tap water. And it's in Singapore which the tap water can be drink...