Does KDF-55 add copper to my drinking water? Isn’t too much copper bad for you?

This answer requires a little background. KDF-55 is a mixture of Zinc and Copper, as certain impurities are removed from the water, Zinc and Copper ions are released. Zinc and Copper are both essential minerals for the human body, however it is possible for some people to get too much copper, because a small percentage of the population retains copper. Getting too much zinc on a modern diet isn't likely at all. Now to the answer, and the good news: the amount of zinc and copper added to your water by KDF-55 is insignificant. Here is part of a test report from an independent... 

Can you trust municipal water systems?

A water quality manager fired by the D.C. Water and Sewer Authority in 2003 was ordered reinstated and awarded hundreds of thousands of dollars yesterday by a judge who said she was improperly terminated after warning federal authorities about excessive lead in the District's tap water. That is the opening paragraph of a story on the Washington D.C. lead in the water scandal in the Washington Post. Unfortunately, all municipal water systems are run by humans, and we humans all make mistakes. Kind of obvious that Mr. Water Filter sees an opportunity to protect yourself from...