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    Help - the green isn't going

    Hi, we have a 12*6*1m pool which over the last couple of days has turned a deep green. The pH was 8.2 but balanced that back to 7.6 and raised fc to 25 with 2kg of cholro crystals but its been like that for 24hrs with no change in colour. Don't have a test kit for cc (looking for one in rural...