I have some light stains on the sides from the water line at closing and black stains on the bottom.
Today I did an AA treatment. I used 5 lbs of AA and 2Q of ProTeam Metal Magic. I do not have a circulate cycle or a backwash system so I'm just keeping the filter on 24/7.
I sprinkled the acid around the edges per the article and those stains seem to have disappeared. I was unable to get the AA directly on the stains in the middle of the pool and in the deep end.
What are my next steps? How do I know if I used enough AA? What if I used enough AA but not enough sequestrant? Can I add more sequestrant tomorrow or did I miss my window since I already added all of the AA?
Tonight I threw in a few vitamin C tablets and some of the dark stains on the bottom disappeared and some lightened (although they left a yellow powder which I assume is just from the tablet, not metal, but what do I know?)
I may just need to wait a few more days... If I wait a few more days, how much algaecide should I be adding daily?
Patience is a virtue that I just don't have!!