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One of the cheapest and most useful ways to filter water for emergency preparedness is a simple, compact filter that screws onto a hose bib or faucet. Most models of this type remove bacteria, protozoa, sediment and microplastics.

"These are great if you have a hurricane or an earthquake or something else that puts you under a boil water advisory," says Darrel Larson, international director for Sawyer Products. "Some people mount them on a five-gallon bucket. Then you can take it down to a lake, a creek or somebody's swimming pool, fill it up and filter a liter of water per minute."

Continue reading to learn more about filtering water. written by Karuna Eberl.