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Thread: Help with Baq conversion

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    Barbara C's Avatar
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    Help with Baq conversion

    Started my Baq conversion today. I put in 420 oz. of 6% bleach to get my FC to 15. 1 1/2 hour later my FAS/DPD test showed.....
    1. after 10ml of pool water and one heaping scoop of powder sample didn't turn pink but possibly the slightest hint of pink
    2. as I continued to add drops the sample became more and more pink with each drop

    I was confused by this and stopped the test at about 30 drops.

    3. Repeated the test and got identical results.
    4. OTO test shows 0 chlorine.
    I assume I have 0 chlorine but I don't understand why FAS/DPD test progressed towards pink as i added drops.

    Thanks for any help!!!
    24' AG Vinyl
    13,500 gallons
    1hp Hayward pump
    Sand filter
    Jug dumper apprentice

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    frustratedpoolmom's Avatar
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    Re: Help with Baq conversion

    I'm guessing that it's CC interference and the FC was very low/nil. Which drops were you adding?
    If the yellow OTO shows 0 then it's zero

    Good luck we're here to assist!
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
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    Barbara C's Avatar
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    Re: Help with Baq conversion

    Added the R-871 drops. Sounds good!
    24' AG Vinyl
    13,500 gallons
    1hp Hayward pump
    Sand filter
    Jug dumper apprentice

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    frustratedpoolmom's Avatar
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    Re: Help with Baq conversion

    Try adding some more bleach and testing within 30 minutes with the OTO. If you see Yellow, the test with the FAS-DPD test. If you add a scoop, and it doesn't turn pink, add another scoop.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    JasonLion's Avatar
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    Re: Help with Baq conversion

    Chlorine gets used up extremely quickly at the start of a baquacil conversion, so the zero FC level doesn't surprise me.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Help with Baq conversion

    I spoke with Barbara_C on the phone about her test results. I completely agree that the FC could've been used within that time frame.

    What puzzles me is, after the DPD Powder was added, each succesive drop of R-0871 produced a steady increase towards a rosy pink in the solution until she stopped at 30 drops.

    I have never heard that reported nor am I aware of any interference that would cause that response.

    OP is redoing FC addition and will test within 30 minutes of dosage with the FAS/DPD.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    frustratedpoolmom's Avatar
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    Re: Help with Baq conversion

    That's why I thought maybe she was using the wrong drops...
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: Help with Baq conversion

    Perhaps adding to the confusion......

    OP has reported that continuing into the CC's test, the solution turns a deep rosy pink immediately upon addition of 5 drops of R-0003. After 5 drops of R-0871, the solution turns completely clear.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    frustratedpoolmom's Avatar
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    Re: Help with Baq conversion

    0 FC CC 2.5?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Barbara C's Avatar
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    Re: Help with Baq conversion

    I'm afraid I'm adding another variable to the equation.
    The filter needed to be backwashed due to low pressure. I now need to add fresh tap water. That should help it would seem. We'll see.
    24' AG Vinyl
    13,500 gallons
    1hp Hayward pump
    Sand filter
    Jug dumper apprentice

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    frustratedpoolmom's Avatar
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    Re: Help with Baq conversion

    Hang in there!
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Barbara C's Avatar
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    Re: Help with Baq conversion

    I didn't take chemistry in school so now I'm getting a crash course! It's all good.
    24' AG Vinyl
    13,500 gallons
    1hp Hayward pump
    Sand filter
    Jug dumper apprentice

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