You selected Use charcoal or ceramic filtration pumps. Here’s how others in your region answered. Click Continue to proceed to the next question.
  • Use charcoal or ceramic filtration pumps 25%
  • Boil for at least 1 minute, then cool to drink 21%
  • Mix 8 drops of household bleach per gallon 27%
  • Freeze the water completely, then melt it to drink 27%