See, Broomer, why do you have to make things difficult for me?
I thought I was happy and content with my tap water after all the responses... but now I am questioning it.
I also want control over my water quality. I want to have clean water so my reef matures successfully. It really is about control.
But, maybe Atlantas water quality is good enough to maintain a successful reef. I might call the treatment plant and ask them for their parameters. While they might think I am a nutcase, it couldn't hurt to try.
Then I will decide whether to put the $$$, and $$$$$$$$ into an RO unit, or CORAL.