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Thread: test results

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    bof's Avatar
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    test results

    Hi
    Can someone explain why when I put in pH reducer my TA incresed I am using a lovibond scuba 2 tester

    FC 5.6
    TC 5.8
    CC 0.2
    pH 8.2
    TA 221
    CYA 142
    I know my cya is high these reading are at the end of the day and I am going to put 4.4 Lts liquid chlorine in and 3.5 Lts muriatic acid.
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    duraleigh's Avatar
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    Re: test results

    I can't answer why your TA increased....it won't if you use muriatic acid to lower pH....it'll lower TA also.

    If it was my pool, I would get pH down in the 7's sooner rather than later and then reduce your CYA....it's w-a-a-ay too high.

    You should be targeting 10 ppm FC (14 would probably be better) with CYA that high.....your pool will be almost unmanageable if you have an algae outbreak.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    bof's Avatar
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    Re: test results

    Thank
    I am targeting the FC at 14 ppm and going for 7.2 pH I was just wondering why my TA increased from 150 to 221 and if I put the 3.5 Lts of acid in would my Ta Rocket. I put the chlorine in then the acid yesterday is this OK or should I wait between chemicals
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    Re: test results

    Can you post a picture of the label from the ph reducer?

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    bof's Avatar
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    Re: test results

    Sorry no camera

    And miss information I am using sodium bisulphate as the shop had no Muriatic acid. I added two cups to see how much the pH would drop as I cannot see the sodium bisulphate on the pool calculator.
    on the bag it just says
    natriumbisulfa
    natriumhydrogensulfeat
    einics-Nr 231-665-7
    index number 016-46-00-x
    sodium bisulphate
    Remember this product is from Turkey so
    natural bisulphate
    natural hydrogen sulphate
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    Mod Squad Bama Rambler's Avatar
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    Re: test results

    My guess would be a testing error, or tester error.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Smykowski's Avatar
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    Re: test results

    I'm guessing those are pool store results?
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    Re: test results

    I would suspect test error. If not test error, then I would suspect that some other chemical was added that raised the TA. Perhaps the product is mislabeled.

    Did the product cloud the water when you added it?

    Note: "Natrium" translates to "sodium", not "natural".

  9. Back To Top    #9

    Re: test results

    Quote Originally Posted by bof
    ...
    I put the chlorine in then the acid yesterday is this OK or should I wait between chemicals
    You should wait between adding acid and adding bleach. For dry acid, pre-dissolve it in a bucket of water before adding it. You don't want acid and bleach to mix without being well diluted in the water. 15 minutes is plenty of time with the pump on.
    Outdoor 14,000 gallon IG plaster pool built in 2000 with spillover spa, 2 hp WhisperFlo pump with MagneTek motor, Sta-Rite cartridge pool filter with 300 ft2 filtration area and 0.33 gpm/ft2 filtration rate, Aquabot Rapids 4WD robotic pool cleaner, Raypak digital gas heater, and Intermatic mechanical timer located in the Dallas-Fort Worth metroplex

  10. Back To Top    #10
    bof's Avatar
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    Re: test results

    Yes your correct test error.
    The new gizmo is faulty sending me a new one with pos upgrade out as we speak.
    Fingers crossed.
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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