Emergency Water Purification Calculator In an emergency, to purify drinking water, two methods are most often used. Boiling is the preferred way to purify water. Bring water to a rolling boil for 3-5 minutes, keeping in mind that some water will evaporate. Let the water cool before drinking (obviously). Add one minute of boiling to the …
The post Emergency Water Purification Calculator appeared first on SHTF & Prepping Central.