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Thread: Chlorine still too high

  1. Back To Top    #1

    Join Date
    May 2012
    Location
    Auburn, AL
    Posts
    25

    Chlorine still too high

    Hello everyone,

    I basically have a new pool setup. I purchased this house a month ago and I did a drain/fill to lower CYA to a sane level. I'm having high tCL issues. Here are my water numbers:

    Temp: 84 F
    Salt: 3500 ppm
    TDS: 2780
    FCL: 5.14 (I have to say, it is coming down - was 8.63 four days ago)
    tCL: 5.28
    CC: 5.28-5.14 = 0.14
    pH: 7.4
    ALY: 101
    CH: 74
    CYA: 49

    I've been holding off adding CYA in the hopes that the sun would burn off tCL down to the acceptable range. We've had some very sunny days here (Auburn, AL); perhaps I have just not waited long enough?

    Pool bather load is light, two swimmers about 3 days per week. Load will be very high next week, though.

    Based on the above numbers, what should I do? Just wait?

    Thanks,
    Phil
    18'x36' 30,000 gal IGP, Sand Filter, Intellichlor IC40 SWG, Main and Booster pumps with Polaris 360.

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: Chlorine still too high

    Based on the above numbers, what should I do? Just wait?
    Your numbers are fine. Consult the FC/CYA chart and you will find you are very close to being perfect. With a big bather load coming up (party?) it is a VERY good idea to increase the FC by about 2-4ppm PRIOR to the expected load...it'll help keep your pool nice and clear.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    May 2012
    Location
    Auburn, AL
    Posts
    25

    Re: Chlorine still too high

    Quote Originally Posted by duraleigh
    Your numbers are fine. Consult the FC/CYA chart and you will find you are very close to being perfect. With a big bather load coming up (party?) it is a VERY good idea to increase the FC by about 2-4ppm PRIOR to the expected load...it'll help keep your pool nice and clear.
    Thanks! I thought everything looked OK just thought tCL should be below 5 ppm.

    No party just yet. We're hosting a US Swim School toddler class for a bunch of kids next week; so I'll probably lean more to 4 ppm FC than 2 ppm

    Thanks,
    Phil
    18'x36' 30,000 gal IGP, Sand Filter, Intellichlor IC40 SWG, Main and Booster pumps with Polaris 360.

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