I have been using the TF-100 kit and have been checking and maintaining daily the water chemistry. Last week the pool started getting green at the bottom and is steadily getting more green algae. Here is my current water chemistry. pH=7.4 (have kept it between 7.2 and 7.5), TA=100 (have kept it at 100), CYA=40 (have kept it at 40, no higher), Cl>5 (have kept it between 4 and 10 but usually about 5). I used the R-0870 to do the Chlorine Drop Test and it showed 0 FC. (the R-0870 is about 3 years old and kind of stuck together so not sure if it still works or not).
My pool, I think, is acting like the CYA is over 100 but it is 40, like it is locked. Help? What am I doing wrong? I want to not get in this situation, what am I missing? I know how to get the green out, but don't want to get to this point.
My pool, I think, is acting like the CYA is over 100 but it is 40, like it is locked. Help? What am I doing wrong? I want to not get in this situation, what am I missing? I know how to get the green out, but don't want to get to this point.
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