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.