Hi Marie,

Thanks for the reply. I was looking at the Metal Magic web site, this product seems a lot cheaper than the Natural Chemistry. Just wondering, did you use the SeaKlear because the Metal Magic made things cloudy?

I've been procrastinating since things are finally nice and warm and the stain is still "minor" (not visible except the skimmer boxes & not the steps yet) and I don't want to lose a day of swimming right now. Also, I did not see anything about phosphates on the Metal Magic label either. I'm still investigating.

What bugs me is where this is coming from since the K-1716 Iron Kit from Taylor shows 0 ppm, same with copper using the K-1730 kit (0 ppm) (both samples of my make-up water). What else is there? Or better yet how do I test for it?