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Thread: CYA...What is it?

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    CYA...What is it?

    Welcome to TFP! I started a new Thread for your post. Please start a new Thread whenever you have a question or new topic as opposed to posting your question on someone else's Thread. Posting your question in a new Thread is more likely to get responses and gives your question the attention it deserves. --BoDarville, TFP Moderator

    What is this CYA everybody talks about?
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    BoDarville's Avatar
    Join Date
    Jun 2012
    DFW, Texas

    Re: CYA...What is it?

    Cyanuric acid, often called stabilizer or conditioner, protects free chlorine (FC) from sunlight and lowers the effective strength of the FC by holding some of the FC in reserve. The higher the CYA level, the more FC you need to use to get the same sanitizing effect. Suggest checking out the ABC's of Pool Water Chemistry for more information.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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    Join Date
    Oct 2013
    Chapin, SC

    Re: CYA...What is it?

    too little is no good, you'll lose more FC to the sun burning it off. And too much is not good either. Just right is 30-50 for a non-swg pool which depends on where you live. Lots of sunshine means you need it closer to 50. Your location in your profile and pool equipment in your sig would be helpful too.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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