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Thread: Pollen (?) Problem EVERY YEAR

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    Pollen (?) Problem EVERY YEAR

    Hi All
    Every year I close my pool with PERFECT, clear water. Have a mesh cover. When I open its ALWAYS a little cloudy - just a little. I always figured it was pollen - 1 week with a skimmer sock & vac-ing and it was perfect again. Not THIS YEAR! opened 4-15 (tax day every year) Still having a problem with the cloudiness - getting better slowly but not there yet. The skimmer sock is full of White GOO daily.
    Its a 19K gal 16x32 with an auto pilot SWG (GREATEST INVENTION EVER!)
    Yesterdays #'s... (from a pool store- I trust them.) Very mild winter in Central PA - they told me a lot of people have similar issues this year. Will run my own tests tomorrow with my TFP kit
    FC 6.2 ppm
    TC 8.9 PPM
    CC 2.7 PPM
    pH 7.7
    Hardness 140
    Alkalinity 93 PPM
    CYA 25 PPM
    Salt 3200
    I don't think its algae - No yellow / green tint to it - just white-ish milky color - same for the stuff caught in the skimmer sock

    They recommended shocking and a clarifier - I put 6# of SAM's club shock and their clarifier (forget the name - tossed the empty bottle) - not really helping yet

    Any Thoughts??

    Thanks
    JS

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    linen's Avatar
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    Re: Pollen (?) Problem EVERY YEAR

    Definitely time to do the shocking process with that high of CC, though I would test with your tf-100 to confirm.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Pollen (?) Problem EVERY YEAR

    I did not use my TFT test kit yet - Ordered refills & salt strips. I think the reagents are getting kinda old.
    Went back to pool store with another sample. Keep in mind, all I did yesterday was add 6# of Cheap Sam's club shock @ 5PM yesterday & 32 Oz GLB 'Drop n Vac' clarifier @ 9PM. Forced the system to run all nite. Took sample @ 1PM today - filter ran non-stop since the shock

    Here's the new #'s.... Is this possible?

    FC 3.5 (was 6.2)
    TC 3.5 (was 8.9)
    CC 0.0 (was 2.7)
    pH 7.2 (was 7.7 - dropped 1/2 point in under 24 hrs??)
    Hardness 160 (was 140)
    Alkalinity 67 (was 93)
    CYA 10 !!? (was 25)
    Water temp is 80 - heater NOT running

    The was noticeable crud on the bottom and my Wife Vac'd it to waste - the water is still milky white. No real change. I did read and WILL follow the 'Shocking process'

    I did not add any CYA yet - til I got CL adjusted. I DID add 3 big bottles of 6% Chlorox after I drew the sample today - Auto Pilot is still set @ 40%. Filter off now - (runs 9A to 9P)

    Do dramatic changes like this seem normal with the addition of ONLY Shock & a flocculent?

    I'm kinda stumped - Looking for a little more guidance. still don't think its algae but won't know for sure til I do an overnite CL loss test.
    Any input from the Chemists here??
    Thanks
    JS

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    Re: Pollen (?) Problem EVERY YEAR

    Oh, 1 more thing.
    Linen, THANKS for the quick reply (sorry for being rude!)

  5. Back To Top    #5
    linen's Avatar
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    Re: Pollen (?) Problem EVERY YEAR

    First off, I know you know this, but pool store results often are not reliable, your example here is a good one. With that said, if the shock you used was dichlor then it would have lowered your ph quite a lot...however having your TA go up and not down would be unlikely. It also should have raised your cya not lowered it. Bottom line I would disregard those results and start using your TF-100 asap.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Pollen (?) Problem EVERY YEAR

    Been Shocking - water is MUCH better but not perfect. Thanks for pointing me to the right way to shock. I've been using bleach (6% Chlorox - big bottles). The gunk in the skimmer sock is darker than I had first seen - I think it WAS algae after all.
    My FC is at 31-35 since my last post
    CC @ 0
    CYA @ 90.
    That seems kinda high.

    In fact, one of my FAS-DPD tests was 'Funky'
    10 ml sample, 1 scoop and it turned pink then back to clear AS I WAS STIRRING THE POWDER!?
    Rinsed and tried again and it didn't repeat??!! Its taking 60+ drops to turn the sample clear - WOW! Normal?

    Also, My wife seems to think the liner below water level is lighter - is it possible for FC at those levels to fade my liner??

    Thanks for all the input - I'll get it right, even if it kills me!
    JS

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    Smykowski's Avatar
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    Re: Pollen (?) Problem EVERY YEAR

    You may need 2 scoops of powder with FC that high. Also, make sure you're moving through the test quickly. Only slow down at the end. See the extended kit directions.

    The chlorine/CYA chart has shock level at 35, pool calculator has it at 23, so I'd say your FC level is fine.

    My guess is that the liner under the water level is now CLEAN for the first time ever!! That's what happened to my pool.
    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
    The most important article on this site - The ABCs of Pool Water Chemistry

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