Thanks for the replies. I'll test the well and city water tomorrow. Pat, what is a SWC cell? My well water also has the rotten egg smell, which I believe is a high sulfur content.

Ivyleager, our city water here in Fl is ground water and is basically treated well water. They treat it at the water plant with ammonia and Chlorine which is where the Chloramines comes from. Then it's pumped through the city.

Steve