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Thread: Chlorine and Stabilizer

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    Chlorine and Stabilizer

    I just got my pool filled yesterday (had to drain and refill). I looked over the beginners guide pool-school/temporary_pool_guide. I did not put any bleach in, but last night I started on the shock. According to the guide, 5 oz / 500 gal, I need appox 10 oz (appx 5000 gal). I will keep adding the 10 oz of shock a night for the next 3 nights. My question is, should I go ahead and add the bleach as well? I checked the TC level earlier, it appears to be above 4 (max of tester),thus why I'm questioning adding the bleach. pH is 7.2

    Thanks.
    --
    Keith

    Intex 15' x 48" AGP (5300 gallons)
    Intex 2,100-Gallon Sand Filter Pump
    Central Mo

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    Mod Squad zea3's Avatar
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    Re: Chlorine and Stabilizer

    What are you using to shock the pool?
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Re: Chlorine and Stabilizer

    HTH shock n swim from wally world.
    --
    Keith

    Intex 15' x 48" AGP (5300 gallons)
    Intex 2,100-Gallon Sand Filter Pump
    Central Mo

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    Mod Squad zea3's Avatar
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    Re: Chlorine and Stabilizer

    HTH Shock and Swim is calcium hypochlorite and does not contain stabilizer (CYA). It will raise your FC (free chlorine) but it will also raise your CH (calcium). You do not want calcium to get too high as it will cause cloudy water over time. When your FC drops you can use bleach to raise it back to the recommended level.

    Have you put any stabilizer in your pool yet?
    TFP Moderator
    Helpful links: TF Test Kits,TFP Pool School, PoolMath
    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Re: Chlorine and Stabilizer

    I was thinking it did, but I see I'm wrong. So far, no, no stabilizer.
    --
    Keith

    Intex 15' x 48" AGP (5300 gallons)
    Intex 2,100-Gallon Sand Filter Pump
    Central Mo

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    Join Date
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    Re: Chlorine and Stabilizer

    The temporary pool guide wants you to use dichlor (something whose main or only ingredient is sodium dichloro-s-triazinetrione) not cal-hypo (full name calcium hypochlorite).

    At 5 oz per 500 gallons you want 50 oz or round that to 3 lb (48 oz) of dichlor if it comes in 1-lb containers.

    This stuff IS your chlorine source while you are adding it, you do not use bleach until you've used up your allotment of dichlor.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Re: Chlorine and Stabilizer

    Thanks guys. I need to go pick some up tomorrow.
    --
    Keith

    Intex 15' x 48" AGP (5300 gallons)
    Intex 2,100-Gallon Sand Filter Pump
    Central Mo

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