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Thread: Added 3 Lbs Cal-Hypo to Shock, Water Still Very Cloudy

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    Added 3 Lbs Cal-Hypo to Shock, Water Still Very Cloudy

    Last weekend I found Algae growing under Ladder Stairs. Scrubbed & dislodged algae. Fell to bottom of pool.
    I decided to get some 70% Chlorine Cal-Hypo. Put 3 One LB. bags in on Tuesday. Raised FC to 7.5. My CH is 314. It's Friday night & the water is still very Cloudy.
    I have never seen the water so cloudy. Don't think I'll use Cal-Hypo anymore.
    Tonight I finally Did a nice long 3 Minute Backwash & I'm hoping tomorrow it will clear up.
    Any suggestions or ideas as to why. Did I use too much Cal-Hypo?
    20' X 40' Rectangular Gunite Pool with Spa
    28,000 Gallons
    Sand Filter
    Rainbow Chlorinator
    Penair Pump
    Polaris 280

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    Mod Squad jblizzle's Avatar
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    Re: Added 3 Lbs Cal-Hypo to Shock, Water Still Very Cloudy

    If you see algae, why are you not following the shock process correctly?

    Cal-hypo can make the water cloudy ... why did you not stick with liquid chlorine? What is your CYA now?
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    JasonLion's Avatar
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    Re: Added 3 Lbs Cal-Hypo to Shock, Water Still Very Cloudy

    If you post a complete set of water test results we can give you more specific advice.
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    Re: Added 3 Lbs Cal-Hypo to Shock, Water Still Very Cloudy

    Sorry for not posting Tests.

    I use the Taylor T2005 (Complete High) (I know! Not The Best Test Kit)

    FC 7.5
    CYA 60 (Ace Hardware Test says 113. Have Tested it at ACE like 8 times in last 4 months, always in 100 Range)
    I am following instructions explicitly Testing CYA with my Taylor Kit, The Black Dot finally disappears at 60.
    TA 90
    PH 7.8
    CH 314

    And Yes, I will only use Liquid Chlorine from now on. I was looking for a more concentrated form of shock, without putting 5 Gallons of 10% Chlorine. Being Lazy never Pays Off!
    20' X 40' Rectangular Gunite Pool with Spa
    28,000 Gallons
    Sand Filter
    Rainbow Chlorinator
    Penair Pump
    Polaris 280

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