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Thread: What to avoid with a fiberglass pool

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    bear31088's Avatar
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    What to avoid with a fiberglass pool

    I had a fiberglass pool put inlast year and the guy who installed it told me to NEVER use bleach in the pool. Don't know why. So....I come to this site and get all this great information with which I can keep my pool in pristine condition...and it's easy to use the TFP system.

    My questions are: Should I be using liquid chlorine? Isn't that bleach? And, with a fiberglass pool, are there chemical [B]imbalances [B] that I should avoid so as to not ruin the fiberglass?

    Latest chem readings:
    FC: 3
    CC: 0
    Ph: 7.6
    TA: 80
    CH: 230

    Thank you.

    Barry
    Barry, Central GA
    15X36 IG 14,200 gal fiberglass pool. Hayward Sand Filter with 1 HP Hayward SUPER PUMP. Pentaire "Kreepy Krawly Robotic Cleaner

    e-mail: oso49@cox.net

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    pwrstrk's Avatar
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    What to avoid with a fiberglass pool

    Barry the guy who told you you can't use liquid chlorine ( bleach ) is wrong. Bleach is liquid chlorine.
    You missed the CYA test. Do you know what your CYA level is ? 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Patrick_B's Avatar
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    Re: What to avoid with a fiberglass pool

    He is absolutely wrong. Chlorine is Chlorine. The fiberglass has no idea whether it came from a liquid, solid, or powder. The person telling you that simply does not understand. There is positively no downside or danger to adding Bleach/liquid Chlorine to a FG pool.
    TFP Moderator
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    JasonLion's Avatar
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    Re: What to avoid with a fiberglass pool

    The anti-bleach attitude is one of those rare pool myths that doesn't have even a small glimmer of truth to it. It goes back a long way. It used to be a lot more common, but is starting to fade out just a little these days. The origins come down to using bleach means not buying as much from the pool person, which is bad for them, so it must *obviously* be bad for you as well. From there they make up reasons why it is bad, which get passed down generation after generation till everyone forgets that they made it up in the first place.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    bear31088's Avatar
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    Re: What to avoid with a fiberglass pool

    Thanks all for the reassurance on using bleach/loquid chlorine. And sorry about leaving out the CYA value. It was 40.
    Barry, Central GA
    15X36 IG 14,200 gal fiberglass pool. Hayward Sand Filter with 1 HP Hayward SUPER PUMP. Pentaire "Kreepy Krawly Robotic Cleaner

    e-mail: oso49@cox.net

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    pwrstrk's Avatar
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    Re: What to avoid with a fiberglass pool

    Your FC level is at the bare min for your CYA level. I would target 7 and that would give you some wiggle room for FC loss so you don't fall below your min. 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    bear31088's Avatar
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    Re: What to avoid with a fiberglass pool

    Thanks for the recommendation. I'll test again after work and balance accordingly. Thanks again.
    Barry, Central GA
    15X36 IG 14,200 gal fiberglass pool. Hayward Sand Filter with 1 HP Hayward SUPER PUMP. Pentaire "Kreepy Krawly Robotic Cleaner

    e-mail: oso49@cox.net

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