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    Red algae, iron, or something else?

    First year with a pool. I left the pump off for a couple of days and then had to deal with a greenish/brown algae. I just received my TF-100 kit Friday so I spent the weekend trying to SLAM the pool. The algae cleared up but then this morning I had reddish brown particles at the bottom (see...
  2. D

    Low PH with high alkalinity

    Moved from here. I just encountered the same issue. Ph of 7.2 with TA of 140. The pool math tells me I should reduce TA. Is this unnecessary?