A growing number of states are requiring residents to boil their tap water before going outside.
But there are no easy rules on how much to boil or how long to let it sit.
What to boil and when depends on your home state.
If you live in one of the worst-hit states in the country, it might be best to wait for the weather to cool down before drinking.
Here’s what you need to know about your home water supply.
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