Boiling

• Heat and strain water through clean cloth
• Boil water vigorously for 2-3 minutes
• Allow water to cool.
  • Adding a pinch of salt per quart removes flat taste
  • Or, pour between clean containers several times

Chemically

Chlorine

Any household bleach solution (plain, not scented) that contains hypochlorite may be used for disinfection.

• Drops per gallon of clean water*
  • 8 drops
    •  *Double the amount for turbid (cloudy) water

• Mix thoroughly and let stand for 30 minutes.
  • Should have a faint chlorine odor
    • If not, repeat dosage and let stand for 15 minutes
  • Too strong of chlorine taste
    • pour between clean containers a several times
    • Let stand exposed to air for a few hours

How to video:

Iodine

• Common household iodine from the medicine chest or first aid kit package may be used to disinfect water
• Add 5 drops 2% United States Pharmacopeia (USP) tincture iodine
• per quart of clear water
  • Turbid (cloudy/unclear) water add 10 drops
• Mix thoroughly and let solution stand for at least 30 min.

More info: http://www.who.int/water_sanitation_health/publications/2011/WHO_TN_05_Emergency_treatment_of_drinking_water_at_the_point_of_use.pdf?ua=1

http://www.co.maui.hi.us/faq.aspx?TID=62