Pool was perfect once opened. I accidentally let the chlorine get to 0, but added too much chlorine (was at 10) that day and kept it up since. Also, added phos free and metal free at the same time, to take care of the small amount of those ( I wish I'd read sooner not to worry about the phosphates). All chemicals have been balanced all week, but the pool has gotten greener and greener. I also added filter magic to my sand in case it was that. Help greatly appreciated.
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