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Thread: It does what? Is this possible

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    It does what? Is this possible

    I have not been on the forum for awhile, but I seem to recall CYA (cyanuric acid) stays in the pool.

    I always had trouble raising CYA levels, but I doubt the physics have changed much in the last few years.
    Any comments? Thanks.

    http://www.menards.com/main/health-w...23585907469243

    Description & Documents
    Instant gratification when added to pool. No wait time to swim. Will not cloud the pool and is ready to use. No mixing is required.

    12.5% strength
    No settling on the bottom of the pool which creates stains
    Liquid pool chlorinator is one of the best options to reduce cyanuric acid levels
    For above or inground swimming pools
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    Pool Tool's Avatar
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    Re: It does what? Is this possible

    It is a bit of a misnomer and poor labeling. It will not reduce the CYA, but rather just stop it from increasing as the liquid chlorine is not bound to CYA like dichlor or trichlor.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Mod Squad JVTrain's Avatar
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    Re: It does what? Is this possible

    Liquid chlorine will not reduce cyanuric acid levels directly. Using it instead of trichlor or dichlor will "reduce cyanuric acid levels" because you're not using them? It's confusing verbage.

    There's some complex chemistry involved but maintaining higher FC levels (think shock level FC) for extended periods can accelerate the decomposition of CYA, but in normal maintenance, using liquid pool shock will not actively lower CYA levels.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
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    borjis's Avatar
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    Re: It does what? Is this possible

    I think they are implying that USING it instead of pucks will prevent cya increase...true
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
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    Re: It does what? Is this possible

    Ahhh, subtraction by addition (or non-addition).

    Must be the same group that manages the national debt.

    Thanks for the responses.
    Vinyl In-Ground (vinyl) - about 21600 gallons (18x32 Grecian)
    Hayward DE (model 7220?) filter with Multiport valve
    Challenger Hi Flo Pump (3/4 HP)
    Intex SWG
    leaky/non-functioning Raypak Versa Natural Gas Heater *removed*

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    Mod Squad tim5055's Avatar
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    Re: It does what? Is this possible

    Quote Originally Posted by shortdogOH View Post
    Must be the same group that manages the national debt.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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