Disinfect cistern water
Check to see that the cistern has been properly cleaned in advance and that it has been covered properly. (For more information, see warnings below.)
Add 2 drops of bleach per gallon, or 3 fluid ounces of bleach per 1,000 gallons.
Wait five minutes before using the water.
Things You Will Need
- Use unscented domestic chlorine bleach, which contains approximately 5% sodium hypochlorite, to clean cistern water.
- If bleach is not available, boiling the water is also an effective way to disinfect it.