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Thread: no CYA as tested with TF test kit

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    Join Date
    Oct 2007
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    Parkland, FL
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    no CYA as tested with TF test kit

    I tested my CYA today and my TFP test kit says I have no CYA. this is strange because I tested it a couple of times in the past 6 months or so and it said it was at like 40-60. I have had a lot of rain, but I don't drain the pool, I just let it evaporate so I don't screw up my cya and salt levels.

    So my question is, can CYA just evaporate? Either the chemicals in my kit just went bad or I really have lost all CYA. I've been having problems with my salt generator producing some chlorine in the morning and then I test in the afternoon and the level is zero so its all pointing towards the stabilizer.
    12000 gal diamond brite pool with 400 gal spillover spa, 1 1/2 HP pump and Hayward 1100 cartridge filter, Hayward Heatpump.

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    Apr 2007
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    Sebring, Florida
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    Re: no CYA as tested with TF test kit

    Hi, Rob,

    No other reports of the CYA reagent going bad......it's a pretty inert solution so I doubt much can go wrong with it.

    You seem to have good knowledge of the testing methods so everything pretty much points to 0 CYA.

    I woulod certainly get another solution based test (not strips) for comparison, tho.

    I have no clue why the CYA would disappear in a clear pool.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: no CYA as tested with TF test kit

    yea, I"m assuming the cya solution is good. I did have probably a little bit of algae in the pool, I tried to catch it pretty quick by adding chlorine. Could that cause it?

    I"m testing a new type of salt generator/robotic cleaner and the the cell has some issues so my pool has gone down to no chlorine or very little chlorine a couple of times.
    12000 gal diamond brite pool with 400 gal spillover spa, 1 1/2 HP pump and Hayward 1100 cartridge filter, Hayward Heatpump.

  4. Back To Top    #4

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    Oct 2007
    Location
    Philadelphia, PA
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    Re: no CYA as tested with TF test kit

    See this thread for an option cya-from-60-to-0-ppm-t8686.html .
    11x27 in ground, vinyl pool
    ~12,500 gal
    PAC FAB (Pentair) Pinnacle 3/4 hp pump
    Pentair 24 sq ft DE filter
    One skimmer, one return (no main drain)

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