What happens if you accidentally drink tap water in Mexico?
Drinking contaminated, or unclean, water can make you sick with diarrhea, vomiting, and stomach pain. You can get sick if you use contaminated water for cooking, washing food, preparing drinks, making ice, or brushing teeth.
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If you want to avoid traveler's diarrhea, there are some simple rules to follow. First, forgo tap water and opt for bottled water instead. It may not be the best for the environment, but it will be better for your gut. Second, make sure you eat foods at the temperature at which they are safest to be eaten.
Puerto Vallarta's water system is one of the best in Mexico. The water treatment plant is considered state of the art and wins many awards. The tap water in Puerto Vallarta actually tastes good too. You can feel absolutely confident brushing your teeth and showering in Puerto Vallarta.
“Hotel water is often as safe as the public water supply where the hotel is located,” Bartell told Verywell in an email. “But some remote hotels have their own private water supplies, which are less regulated.” In some older hotels, tap water might be contaminated by lead pipes, Bartell added.