About tap water safety
Tap water safety varies enormously across the world. In developed nations with strong infrastructure, water goes through multiple treatment stages. In many developing regions, aging pipes and insufficient treatment remain serious public health challenges.
Warning signs in your tap water
- Discolouration — yellow, brown, or cloudy water
- Unusual smell — chlorine, sulphur, or metallic odour
- Strange taste — bitter, salty, or metallic
- Local health notice or boil-water advisory
How to make water safe at home
- Use an NSF/ANSI 53 certified filter for heavy metals
- Use reverse osmosis for the most complete purification
- Boil water for one minute to kill bacteria and parasites
- Use UV sterilisation tablets when travelling
💡 Traveller tip: Even treated water can upset your stomach in a new country due to different mineral content. When in doubt, filter it or choose bottled water.