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Thread: Plaster pool - what numbers should I try for?

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    Join Date
    May 2011
    Location
    S.E. Mass.
    Posts
    15

    Plaster pool - what numbers should I try for?

    Thankyou everyone for all your help.
    Please help me with the correct numbers to try for with my gunite pool. It is an old pool but it's in great shape. A few years ago we had a new quartz finish put on, it's holding up well and I really want to take care of it as good as I can.
    I also got the TF-100 test kit and really appreciate it's accuracy.
    Today my readings are;
    Temp.............................72
    TA.................................100
    PH..................................7.6
    CH..................................200
    CHL.................................3.0
    CC...................................0.0
    TC....................................3.0
    CYA..................................30+

    I am using BBB method and like it except all the lugging..ha

    What do you suggest for the proper readings for a 20,000 gal plaster pool ?
    Wishing you well,
    Paul
    30 year old Gunite, 2008 got a new quartz finish.
    Freeform, approx 20,000 gal.
    Haywood 36 sf D.E Filter & 1 hp Hayward Pump
    BBB now was Triclor.

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    dmanb2b's Avatar
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    Apr 2009
    Location
    NY
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    3,728

    Re: Plaster pool - what numbers should I try for?

    See attached...plaster

    pool-school/recommended_levels
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

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    Join Date
    May 2011
    Location
    S.E. Mass.
    Posts
    15

    Re: Plaster pool - what numbers should I try for?

    dmanb2b,
    Thankyou for your guiding me to that chart again. I am comfortable with all those readings except TA...?
    I have been told many different levels for my Total Alkalinity over the years mostly around 125.
    The company who did the quartz finish said..... TA....130-150, CYA.....90-100, CH....220! !!

    I feel I have had very poor advice over the years that's why I am asking for the correct levels to aim for.

    The Pool School Chart says to keep a plaster pool at, TA.....70-90, CYA.....30-50, CH.....250-350, using bleach.

    So, you see my confusion @ the TA advice I have had. (90) sounds good to me if you say so...

    Thanks again,
    Paul
    30 year old Gunite, 2008 got a new quartz finish.
    Freeform, approx 20,000 gal.
    Haywood 36 sf D.E Filter & 1 hp Hayward Pump
    BBB now was Triclor.

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

    Re: Plaster pool - what numbers should I try for?

    Leave your TA right where it is. Your pool can operate successfully at a fairly wide range so I wouldn't mess with it for now.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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