3 ms·

Or the more traditional ones: bacterias, viruses, worms, ...

• Llamamoe 2y ago
  You'd more than notice if your water was bad enough to develop enough harmful microorganisms to be bad for you (this goes for drinking water, not random wilderness water of course. always filter and boil that)
  • lukan 2y ago
    "not random wilderness water of course. always filter and boil that" To be honest, maybe I was lucky, but I drank plenty of wilderness water unfiltered and except for mild stomach problems, I never had any issues.
    • tekla 2y ago
      "except for mild stomach problems" and "I've never had any issues" are contradictory.
      • lukan 2y ago
        With the exception of your comment, I enjoyed this day.