ANSWER: In the event that your home’s water supply has been compromised, the first step you should take is to turn off the water service at the shutoff valve, usually located at the water meter. This will ensure that the water currently in your home’s plumbing is not tainted.
Under ideal circumstances, you’ll be close to home when a crisis occurs, where you’ve stored an adequate emergency water supply, at least enough to last your family for 30 days: 1 gallon per person per day + water for sanitation.
But what if your storage plans aren’t complete in time? Or what if you’re not at your home when disaster strikes?
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That’s when you’ve got to get creative. In many disaster scenarios, the municipal water supply may be contaminated and/or offline.