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    CC rising, but FC is correct...Why?

    I have a SWG that is keeping the FC at ~4.0 continuously (I check every day). My CYA is ~50, so FC should be good (slightly over 7.5% CYA). I have noticed that the CC has been slowly rising over the last few days - 0 three days ago, 0.2 two and one day ago, and 0.4 (maybe 0.3?) today. Pool...
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    When to adjust CYA

    Opening the pool this spring. Started a week ago with slimy green soup, but now am ALMOST done with the SLAM - beautiful crystal clear water, pH = 7.6, TA = 60, CH = 50, CYA= 30, SALT = 2000. My question is this: I obviously need to bring the salt up to 3000 for my SWG, and need to bring CYA up...
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    FAS-DPD 1PPM test?

    When slamming (which I've had to do twice this season - once to open, and once just this week when CC went > 1PPM), I use LOTS of R-0871, since at [e.g.] 25PPM FC, I need 50 drops of R-0871, potentially 3 or 4 times per day (morning test, 2 tests thru the day, and 1 evening test for my OCLT)...