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Thread: Algae that won't go away!!

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    Algae that won't go away!!

    I have algae that thinks it is here to stay! I have done multiple slams and then I looked up yellow mustard algae and brought my chlorine level up to it's proper level for 24 hours. It looked good for about a week and then it came back with a vengeance. I have the taylor test kit and all my levels have been perfect. I am not sure what to do now. The pool store says my pool should look crystal clear but it is a turning into a swamp. My levels are above 10 and I haven't turned off my pumps. Do I have to do another SLAMM? It took me over 3 weeks last time to get it to clear up.
    I have a in-ground pool that is 40,000 gallons. It has a vinyl liner that is two years old. We use a Hayward 300lb sand filter and we just replaced the sand this year (2015). We use liquid chlorine. We also have a heater. It is a lazy L shape. Dolphin Nautilus vacuum. One main drain with 2 skimmers.

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    Mod Squad YippeeSkippy's Avatar
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    Re: Algae that won't go away!!

    WHen you say you say you performed a SLAM, was it done exactly per the TFP method and did you pass all three criteria to call it quits?
    1) water clear
    2) OCLT loss of 1 or less
    3) CC of 0.5 or less
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
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    Mod Squad tim5055's Avatar
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    Re: Algae that won't go away!!

    Welcome to TFP

    Can you post a full set of test results please.

    You say you have conducted multiple SLAMs. Have you passed all three criteria each time :
    1. Clear water including no visible dead/living algae
    2. CC less than .5
    3. Passed OCLT

    What test kit are you using?

    It is generally very difficult to control a pool using a puck feeder and if you follow the TFP system there is no need to "shock" your pool. I have a feeling you are trying to mix common pool care and TFP methods which will not work.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    aussieta's Avatar
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    Re: Algae that won't go away!!

    welcome to TFP
    please post all of your recent test results
    and any you may still have from when you slammed pool
    SWG inground peanut shaped eco-bright concrete pool
    50,000 litres 13,000 gallons
    Lincoln Salt Chlorinator, 25 gram cell Sand Filter with glass media
    Taylor K2006-C test kit, Taylor K-1766 salt test, Dolphin M500 pool cleaner
    are you taking care of your pool or is the poolshop taking care of you

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    Re: Algae that won't go away!!

    Sorry first time posting. I use a taylor K-2006 FAS-DPD test kit. My levels are FC 8.4, CC .2, TA 180, CH 170, CYA 40, temp.84. I can still see the vinyl design in the bottom of the shallow end but the pool is just getting greener.

    - - - Updated - - -

    After I slammed the pool the I met all the requirements for ending the slam. Sorry I don't have the numbers from the last slamm.
    I have a in-ground pool that is 40,000 gallons. It has a vinyl liner that is two years old. We use a Hayward 300lb sand filter and we just replaced the sand this year (2015). We use liquid chlorine. We also have a heater. It is a lazy L shape. Dolphin Nautilus vacuum. One main drain with 2 skimmers.

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    Mod Squad YippeeSkippy's Avatar
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    Re: Algae that won't go away!!

    Ok then something is causing you to have repeated algae outbreaks...
    ...no one swimming in a lake and coming right home and hopping in the pool, is there? Anyone wearing diapers or kids peeing in the pool to use up all your chlorine?

    That sort of only leaves the explanation that either there was *still* some algae lurking in the nooks and crannies, or you're not keeping your FC up high enough to meet your CYA level consistently.

    You say you're using pucks, are you *sure* about that CYA level?
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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    Re: Algae that won't go away!!

    No lake swimmers or little ones. I have tested the CYA twice in the last month. First time it was 30 now it is 40. I know they said the pucks should give me a higher reading but I haven't had that problem. I thought I would just use up the pucks and then change over to bleach. The pool has only been open two years. We have gotten more rain this summer and I am wondering if that is my problem. I have also kept the solar cover off.
    I have a in-ground pool that is 40,000 gallons. It has a vinyl liner that is two years old. We use a Hayward 300lb sand filter and we just replaced the sand this year (2015). We use liquid chlorine. We also have a heater. It is a lazy L shape. Dolphin Nautilus vacuum. One main drain with 2 skimmers.

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    Re: Algae that won't go away!!

    Ok just returned from the pool store. I had him check my water levels. He got a reading of 80 for CYA. I came right home and checked with my taylor kit and my cheap kit. They both read 43ish. Am I reading my test wrong? I put the water solution in until I no longer can see the dot from the top. At around 70-80 it is foggy but I can still it. Also, I did remove the pucks from the chlorinator and was going to switch to either liquid chlorine or bleach. It seems cheaper to buy liquid chlorine over bleach, so why do you use bleach?
    I have a in-ground pool that is 40,000 gallons. It has a vinyl liner that is two years old. We use a Hayward 300lb sand filter and we just replaced the sand this year (2015). We use liquid chlorine. We also have a heater. It is a lazy L shape. Dolphin Nautilus vacuum. One main drain with 2 skimmers.

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    Re: Algae that won't go away!!

    If I could have one wish on this forum, it would be for people to have confidence in their testing. Everyone spends good money to get a kit and then runs to the pool store to see if their good kit is any good.

    About the last place you're gonna get good testing is at a pool store so why compare their junk results?

    Buy LQ or bleach,,,,,whichever works best for you.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Algae that won't go away!!

    Thank you! I thought I may be doing the test wrong. It is my first year with a taylor kit and only second year with a pool. I was using pucks for chlorinating the pool which I now know add stabilizer. So Funshine sanitizer 12 I was told does not add stabilizer to the pool?
    I have a in-ground pool that is 40,000 gallons. It has a vinyl liner that is two years old. We use a Hayward 300lb sand filter and we just replaced the sand this year (2015). We use liquid chlorine. We also have a heater. It is a lazy L shape. Dolphin Nautilus vacuum. One main drain with 2 skimmers.

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    JoeSelf's Avatar
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    Re: Algae that won't go away!!

    I had to go to the pool store yesterday to get something and I wanted to check out their results because a neighbors pool is looking cloudy this year and it never did. He has a SWG and relies on their testing.. I have measured my CYA level at 40 the last two times i checked. Their test read 5. The other numbers did not match any of my testing.

    Trust yourself.
    13700 gal, 32'x16'x54" AG oval, vinyl, Echo Canyon II, 8500 series, Narrow Yard, Safety Fence & Stair, Sta-Rite Crystal Flow T-210WF, 44 GPM, Hayward SP1580TL 1HP Pump, Aqua Luminator, Festiva wedding cake steps, March 2006, TFT-100, Speed-Stir, Sample Sizer. Avatar Credit: TJ Townsend

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    Mod Squad YippeeSkippy's Avatar
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    Re: Algae that won't go away!!

    Quote Originally Posted by cmx2dtw View Post
    So Funshine sanitizer 12 I was told does not add stabilizer to the pool?
    I Googled it and it appears to just be 12.5% hypochlorate...so no stabilizer that I saw
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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