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Thread: Gone for 1 1/2 week - cloudy water - with test

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    Gone for 1 1/2 week - cloudy water - with test

    I was away for about a week and a half and came home to very cloudy water. There was a couple of storms with heavy rain. I had someone monitoring the water levels only for me. I ran out and checked Chlorine levels and ruled out algae. When chlorine levels were good, I called a friend, went to pool store to buy the same stuff he uses. I tried Fiber Clear filter aid and a clarifier over night. I saw no difference so went for a full set of tests:

    FC 7 (I moved my generator up about 10% before I left)
    CC 0
    PH 8 (or slightly higher)
    TA 70
    CYA 60

    Can high PH alone make water that cloudy? If so, once I add the muratic acid to lower, how long before it should clear if running pump 24 x 7?

    I know that those chemicals are not necessary and now am considering a floc to speed up. This is the first time since we've owned the pool when we did not have crystal clear water.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
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    Re: Gone for 1 1/2 week - cloudy water - with test

    You need to SLAM your pool Following that article precisely will clear your pool.

    Alternatively, you can continue to buy stuff from the pool store hoping something good will happen. The chances are quite high you will continue to get the same results you have been getting.

    A little Pool Store advice blended in with a little TFP advice will fail virtually every time. You need to decide which path to take but don't take both.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: Gone for 1 1/2 week - cloudy water - with test

    Duraleigh, so shock the pool even though there doesnt appear to be algae? I have never bought pool store chemicals until this time and only decided to do it to speed things up. I have been over and over pool school but I guess i had it in my mind that bringing a pool to shock level was needed to kill algae and that my test results ruled that out? Is that a bad assumption?
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
    k-2006 Test Kit

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    Re: Gone for 1 1/2 week - cloudy water - with test

    How did you decide that you didn't need to SLAM?
    Did you run an OCLT?
    I notice that you didn't include a CH result. Maybe you should test it just in case.
    Dave J. TFP Moderator
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    Re: Gone for 1 1/2 week - cloudy water - with test

    Quote Originally Posted by 9needawin
    Duraleigh, so shock the pool even though there doesnt appear to be algae? I have never bought pool store chemicals until this time and only decided to do it to speed things up. I have been over and over pool school but I guess i had it in my mind that bringing a pool to shock level was needed to kill algae and that my test results ruled that out? Is that a bad assumption?
    Yes. You can have algae living in the pool that is below the threshold of being visible. I'd bring the FC up a bit and do the OCLT to confirm. You likely will confirm it, and you can start the SLAM process after that.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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    Re: Gone for 1 1/2 week - cloudy water - with test

    Quote Originally Posted by Bama Rambler
    How did you decide that you didn't need to SLAM?
    Did you run an OCLT?
    I notice that you didn't include a CH result. Maybe you should test it just in case.
    Bama, I ruled it out because FC looks good with a 0 CC. I didnt do CH because the pool is vinyl.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
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    Re: Gone for 1 1/2 week - cloudy water - with test

    Quote Originally Posted by 9needawin
    Quote Originally Posted by Bama Rambler
    How did you decide that you didn't need to SLAM?
    Did you run an OCLT?
    I notice that you didn't include a CH result. Maybe you should test it just in case.
    Bama, I ruled it out because FC looks good with a 0 CC. I didnt do CH because the pool is vinyl.
    The OCLT will tell you for certain. If your FC dropped at some point while you were gone and the algae got a foothold it can survive as your SWG brought the FC back up. You can have algae with 0 CC.

    I was on vacation for two weeks. My friends let the FC drop. They raised it back up but I came home to green walls and perfectly clear water.
    16,500 gallon, 18" x 38" Grecian; IG Vinyl, Hayward DE

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    Re: Gone for 1 1/2 week - cloudy water - with test

    I was away for about a week and a half and came home to very cloudy water
    That's the reason to SLAM the pool. The test results are tools that we use but your pool management sense should tell you that 1.5 weeks of virtually no maintenance and cloudy water calls for a SLAM....no doubt.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Mod Squad Bama Rambler's Avatar
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    Re: Gone for 1 1/2 week - cloudy water - with test

    While CH isn't a problem if it's low it can be if it gets too high. I don't imagine that's your problem, but in the vein of good and thorough testing you should run it every once in a while.

    Having some FC and zero CC's doesn't mean that there's not a problem. You should at very least, run an OCLT.
    Dave J. TFP Moderator
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    Re: Gone for 1 1/2 week - cloudy water - with test

    One of the criteria for SLAMing or knowing you've passed all 3 criteria for SLAMing is "water is crystal clear"

    Your water is not clear, therefore SLAM until it is.
    18x36 inground vinyl lined, Hayward sand filter and tablet chrolinator, approx 18k gallon

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    Re: Gone for 1 1/2 week - cloudy water - with test

    SLAMing - Thanks. I will follow up
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
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    Re: Gone for 1 1/2 week - cloudy water - with test

    Part of the problem with high CH is that if your pH is off, it can cloud the pool.
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    Re: Gone for 1 1/2 week - cloudy water - with test

    CH = 50

    8 1/2 gallons of 6% bleach and pool is above shock level
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
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    Re: Gone for 1 1/2 week - cloudy water - with test

    FC at 24 at 8pm and FC at 24 at 6 am.

    Still cloudy but much better than yesterday. I am not adding any more chlorine and still have my SWG unplugged to let the chlorine level to drop back down.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
    k-2006 Test Kit

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    Re: Gone for 1 1/2 week - cloudy water - with test

    Why would you stop slamming? Your water is not clear? You have not passed all 3 criteria to stop.

    1) Water is clear
    2) CC .5 or less
    3) OCLT of 1 or less
    18x36 inground vinyl lined, Hayward sand filter and tablet chrolinator, approx 18k gallon

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    Re: Gone for 1 1/2 week - cloudy water - with test

    Thanks Spidey. You are right. Gonna run out at lunch and check chlorine to make sure still at shock level and add if needed.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
    k-2006 Test Kit

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