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Thread: CYA and Clarifier

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    thomc21's Avatar
    Join Date
    May 2009
    Grove City, Ohio (Columbus)

    CYA and Clarifier

    This is a two part question, lol. I went a way for a week and when I came back my pool was a greenish, cloudy color so much that I could not see the bottom of the deep end. I figured it was algae since we get a lot of rain and a bunch of leaves from my neighbors tree.

    I followed the steps listed in algae removal. All my readings were ok except for CYA.

    1. First question, I have added 6 lbs of CYA this summer (switch from baq last year) in a 22,500 octagonal pool. At first I was getting a reading of 25. I checked it this week and it says 0? What happened to it and should I add more? The people at the pool store said no because if I added more it could cloud up my pool and the only way to get rid of it is to drain the pool.

    2. I have seen this water clarifier at walmart and wondered if it helps with cloudy water?

    7,500 In-Ground gunite / marble plaster. VS-3050 & VS+SVRS Variable Speed Pump. Rainbow-inline chlorinator (not even used for vacations). Pentair 520 cartridge filter. Paramount Clear O3 generator. SunTouch Controls. Pentair Legend Platinum.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: CYA and Clarifier

    It is possible for CYA to go away in only a couple of days if FC has fallen to zero, but it is relatively unlikely. If you are testing the CYA with a test strip or at a pool store, it is very likely that the test results are just wrong. If you are using a kit with Taylor chemistry, anything from Taylor or the TF100 or the WalMart six way kit, then the CYA probably did disappear.

    Clarifier won't help. You need to kill the algae with chlorine and let the filter do its job.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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