Purifying Water in Emergencies - Preparing with Dan

Best Water Purification Tablets and Drops: Which Chemical Kills What

September 14, 2026May 23, 2026 by Dan Lockland

The eight core items of a 72-hour emergency kit laid out on a table

The CDC is explicit: iodine and chlorine tablets will not kill Cryptosporidium, chlorine dioxide will. That one sentence sorts the six products below into two groups before you look at anything else.

Water Purification Techniques for Emergencies

July 26, 2026January 16, 2025 by Dan Lockland

Three methods make water safe in an emergency: boiling it for one full minute (three above 6,500 feet), disinfecting it with unscented household bleach or purification tablets, or running it through a filter rated for pathogens. Boiling is the most reliable. Filtering alone removes debris but does not always kill viruses. Water is the one …