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Thread: Can shocking damage the pool surface?

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    Can shocking damage the pool surface?

    I need to shock my pool since combined chlorine level is too high.
    I have been adviced to replace the water and not shock the pool since at high levels chlorine might attack the pool material and damage it.
    I own an Intex above the gound metal frame pool and my shock level is 13ppm.
    Is this a true risk?
    Thanks,
    Avi.
    Intex round metal frame 15' x 42"
    Intex SWG / 2000 gph cartridge filter
    Taylor K-2006 test kit
    Outdoor pool with full sun all day long
    Typical temperture range in the 90's

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    Join Date
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    Re: Can shocking damage the pool surface?

    No, not normally.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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    Re: Can shocking damage the pool surface?

    Absolutely not. That's why we teach testing and dosing carefully. 13ppm is fine..........200ppm will likely damage your pool.

    Did you consult the FC/CYA chart (in Pool School) to get that 13ppm?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Can shocking damage the pool surface?

    Thanks for the quick reply.
    I got the 13ppm from the pool calculator based on my CYA level.
    It said 13ppm for shock and 19ppm for mustard algae shock.
    Should I use the chart or the pool calculator is also good?
    Avi.
    Intex round metal frame 15' x 42"
    Intex SWG / 2000 gph cartridge filter
    Taylor K-2006 test kit
    Outdoor pool with full sun all day long
    Typical temperture range in the 90's

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    Re: Can shocking damage the pool surface?

    Either is fine. There is some variance but not enough to make any difference.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Richard320's Avatar
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    San Dimas, CA (LA County)
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    18,768

    Re: Can shocking damage the pool surface?

    What they said, with one caveat: If you use granular chlorine instead of bleach, don't just throw it in and let it sit on the bottom to dissolve. Unless you like polka dots.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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