Quick Answer
Bleach can be used to purify stored water, but it requires careful consideration of dosage and handling to avoid contamination and potential health risks.
Safe Dosage and Mixing
To purify stored water with bleach, mix 2-4 drops of unscented chlorine bleach (5.25% sodium hypochlorite) per gallon of water. This mixture should be applied after the water has been filtered or strained to remove particulate matter. Allow the water to sit for 30 minutes to an hour before consumption to allow the chlorine to kill bacteria and viruses.
Common Mistakes to Avoid
One common mistake when using bleach for water purification is over- or under-dosing. Under-dosing may not effectively kill bacteria and viruses, while over-dosing can leave behind a toxic residue. Another mistake is not allowing the water to sit for the recommended time, which can reduce the effectiveness of the purification process. To avoid these mistakes, it’s essential to follow the recommended dosage and mixing instructions carefully.
Additional Considerations
When using bleach for water purification, it’s also essential to consider the storage conditions of the water. If the water has been stored in a container that has been exposed to sunlight or heat, the chlorine level may degrade over time, reducing its effectiveness. In such cases, it’s best to re-purify the water with bleach or use a different purification method. Additionally, if the water has a strong odor or color, it may be best to use a different purification method to avoid any potential health risks.
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