It seems that I have some metal staining (light brown spots in a bunch of places) more in the corners. Metal was high in the water so I used natural chemistry metal free to lower it.
Hopefully that worked, but stains remain. So now what I understand I need to do is add either ascorbic or citric acid.
I found this citric acid at amazon .. I think this should work? http://www.amazon.com/Spicy-World-Ci...=r601000010-20
After treating the water with citric acid, I plan to add more metal free to neutralize whatever is left in the water.
Is this a good plan?