Two new studies document rare cases in which people who rinsed sinuses with unsterilized tap got infected with brain-eating amoebas.
  • skye
    3•11 months ago

    1 mg of chlorine per 1 litre of water

    • El Barto
      2•11 months ago

      1 mg or 0.001 ml?

      And I know 1 liter of whater is 1kg.