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Thread: Raising the alkalinity in pool?

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    Raising the alkalinity in pool?

    How long does it take for your alkalinity to register after adding to the pool. I added 20 lbs. to my pool today because my TA was less than 20 ppm and was wondering how long it will take to register on my test strips.
    18'x44' AGP vinyl , 21,600gallon, 1 1/2hp pump, 200# sand filter, solar cover, BBB Method.

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    It should definitely register by 24 hours. Total alkalinity is increased generally with sodium bicarbonate, or baking soda (sold by pool stores as alkalinity up). It is usually fine granules that dissolve almost instantly when you put them in the water.

    I wouldn't trust the test strips too much. A drop based kit is much better for testing alkalinity. The strips only give you a rough idea, but if you put a lot in you should see the change within 24 hours. The pump will quickly mix it into the water, and it is highly soluble.

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    Casey's Avatar
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    I added Arm&Hammer Baking Soda to raise my alkalinity the other day at 8 a.m. and by 4 p.m. when I got home from work, I could read the difference. it went from 70 to 100.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    duraleigh's Avatar
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    TA was less than 20 ppm and was wondering how long it will take to register on my test strips.
    The problem may be in the strips themselves (it usually is) TA of 20 is incredibly low. What is your pH?

    I suspect you have bad test strips.....one of the most common problems on this forum.
    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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    That's a great point Dave, I used to use strips and they told me all was well, when it wasn't. My TA was low, so I increased it, and ended up with high TA and I couldn't tell the PH was off because the color chart is really indistinguishable on the strips. They also told me my CYA was in 30-50 when in reality it was over 100. I don't use strips any more. The quick OTO test is just as fast as using strips anyway....
    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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    this morning I checked it and it is still very low but also my ph is low. Which should be raised first, the ph or the TA. The FC is good and the water is pretty clear. The pool place said that my Stabilizer was high also. Do I need to add more TA or what? Help is greatly appreciated.
    18'x44' AGP vinyl , 21,600gallon, 1 1/2hp pump, 200# sand filter, solar cover, BBB Method.

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    j,

    much like a roadmap, we can't show you how to get there unless we know where you are.

    Can you post current test results from the pool store?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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