Isn't the city water good enough without additional filtration?

That depends on your standards of "good enough." True, most communities meet minimum Primary Drinking Water Standards. But your water can still be loaded with impurities you can't taste or smell – impurities that can be potentially harmful.

My municipality tests the water at the source, why should I worry?

Yes, all municipalities test and treat the water by law to meet minimum standards. The water is then transported through miles and miles of pipes where contaminants of all sort could be introduced into your water. These contaminants, along with the harmful byproducts created by disinfectants, remain in the water at the time the water reaches your home.

Does anyone really get sick from drinking municipal water?

Bacteria, viruses and protozoa that make their way into the water supply can and does cause illness in many people each year. According to the Centers for Disease Control and Prevention, there could be as many as 12 million cases of waterborne acute gastrointestinal illness annually in the United States alone. Unfortunately, these contaminants can survive in the environment for months.