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Thread: WWF algae challange-

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    WWF algae challange-

    Howdy

    Everyone here is confident the right balance of chlorine and CYA can kill anything in my pool.
    My pool algae challenges you to a duel……”wooo hoooo haaa haa hee hee heh heh”
    is what I heard when told my algae I was reading your site.

    Me;
    Use a Talyor 4 test kit (FC, TC, Ph,ALK) and strips for (CYA, CH, Phosphates)
    20K gal “Grecian” rectangular pool, vinyl, Hayward sand filter, Hayward pump, Hayward inline chlorinator using 3” trichlor tabs;
    I’ve owned the house/pool since 2002.
    - Central, Connecticut.

    Current stats aug 11,2012;
    Taylor liquid; FC = 5, TC = 5, PH=7.2,ALK=60,
    Test strips;CYA approx 30ish,CH approx 250ish, Phosphates approx 700ish.

    The challenger;
    Green water, a little green slim on the steps and bottom,
    not visibly adhering and growing on the vertical sides, nor in skimmer, nor on return fittings;
    current crop has been around a week.
    The challangers habits;
    First arrived in august of 2010.
    Only comes around when the water temp > 80 (meaning mid august)
    Shows up fast – seems to double overnite.
    In past hasn’t respond to shocking, yellow out, green to clean.
    Responds to shock when water temp drops below 80 and then doesn't reappear until following year.
    this year continues to grow with;
    CYA of about 30, FC much > 10, PH < 7.0, Alk < 80
    Past years it has puzzled me, “Leslies” staff and my professional pool maintenance mgr.

    My current experimental plan;
    Buy liquid test kit that can measure high FC and CYA better then strips
    Use yellow out and your CYA/Chlor chart and Phosfree at same time.
    Back wash/clean sand filter
    1) drop chlorine to 2ppm for yellow out application using chlorine nuetralizer
    2) Add 2 gals of muriatic acid to drop ph below 6.8
    (anticipating it will rise with 73% cal-hypo)
    3) Add yellow out,
    4) Add 3L phosfree
    5) then per your chart – if my CYA is 30/40 need FC of 18-24 add 5 lbs of 73% cal-hypo
    6) monitor hourly to make sure FC >19
    7) Brushing 2-3 times a day, running pump 48 hours, then back wash,
    8) Assuming pool is not green - let pool settle to bottom - vacume dead buggers to waste.
    or Continue testing FC/PH/ALK/CYA running pump/back washing/brushing till not green.



    The current bloom history;
    July 31 - Clarity, slightly milky cloudy, visibility about 40 ft
    Very small amounts of green algae in a few corners
    Tc 3.0,Fc 3.0,Ph 7.3,Alk 110
    running pool pump daily 6-10 hours,

    Aug 1 shocked pool over night with 2lbs leslie power powder 73% cal-hypo
    Brushed, ran pool pump about 12 hours over night

    Aug 2, no signs of algae,
    Small pile of dead algae in deep end corner,
    Due to currents this is where material collects when the pool settles out
    Clarity the same, slightly milky cloudy, visibility of about 40 ft

    Aug 3 morning Clarity, slightly milky cloudy, visibility of about 40 ft,
    no signs of algae
    Tc 5, Fc 5, Ph 7.5, Alk 120
    Added 1 gal of muriatic acid with pool pump running to drop ph and alk
    and left pump running and chlorinator off for 8 hours. Brushed pool.

    Aug 3 evening;
    Light Greenish yellowish algae film on all pool surfaces
    Clarity milky cloudy, visibility of about 20 ft
    Brushed pool
    Ran pump another 8 hours

    Aug 4 midday;
    Per leslies staff
    Tc 5.0 Fc 5.0 Ph 7.2 Alk 100 Phosphates 500 CH 250 CYA 50
    Dissolved solids 900
    Light Greenish yellowish algae film on all pool surfaces
    Clarity milky cloudy, visibility of about 20 ft
    Pump running 24 hours and brushing twice a day.

    Aug 5
    Light Greenish yellowish algae film on all pool surfaces
    Clarity milky cloudy, visibility of about 10 ft
    Pump running 24 hours and brushing twice a day.

    Aug 6
    Light Greenish yellowish algae film on all pool surfaces
    greenish cloudy water, visibility of about 3 ft
    Pump running 24 hours and brushing twice a day.
    FC 4 TC 5 Ph 7.4 Alk 80 Phosphates 700
    Shocked with 3lbs leslie 73% cal-hypo, 1.5 gals of muriatic acid

    Aug 7
    Light Greenish yellowish algae film on all pool surfaces
    greenish cloudy water, visibility of about 3 ft
    Pump running 24 hours and brushing twice a day.
    FC> 10 TC>10 PH 6.8 ALK 60

    AUG 8
    Light Greenish yellowish algae film on all pool surfaces
    greenish cloudy water, visibility of about 3 ft
    Pump running 24 hours and brushing twice a day.
    FC> 10 TC>10 PH 7.2 ALK 60
    Added 1 gal of muriatic acid to drop ph

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    Re: WWF algae challange-

    Good choice to get s good test kit. Hard to advise based on test strips.

    Forget the yellow out and the phos free. Save your money and stick to liquid chlorine. It will knock the challenger out.

    Likely to date you have not maintained as high enough FC level for your CYA to kill it off.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
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    Mod Squad Bama Rambler's Avatar
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    Re: WWF algae challange-

    Welcome to TFP.

    Once you get the test kit, post a full set of results. I suspect your CYA is higher than you think.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    dmanb2b's Avatar
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    Re: WWF algae challange-

    Quote Originally Posted by jblizzle
    Good choice to get s good test kit. Hard to advise based on test strips.

    Forget the yellow out and the phos free. Save your money and stick to liquid chlorine. It will knock the challenger out.

    Likely to date you have not maintained as high enough FC level for your CYA to kill it off.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Ditto to what jbizzle said..yellow out can cause even more issues. Read the shocking your pool article in pool school (link in my sig). It's about raising FC to shock level proportionate to your CYA level and keeping it at that level until your issues resolve
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

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    Join Date
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    Re: WWF algae challange-

    Yep...TF100 test kit 1st and foremost,otherwise its like flying a plane blind folded....oh and welcome to TFP the only pool place you need to be at and the challenge wont even stand a chance
    24,000 Gallon Vinyl Grecian IG,Triton2 Sand Filter / Pentair Super Flo 1 HP Dual Speed Pump ,
    Stenner Peristaltic Pump Injection w/15 gal drum,Stubbed up supply/return for future solar panels :)
    TF100 Rocks !! Pool School....

  6. Back To Top    #6
    linen's Avatar
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    Re: WWF algae challange-

    Welcome to tfp, rikke

    You have gotten good advice above.

    Since you have tried to "clear" the pool your way and the "pool store" way, I would suggests wiping the slate clean and try to do it the tfp way. Shocking is a process here and not a one time application.
    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: WWF algae challange-

    Very well said Linen
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

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