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Thread: Help Green Algae Water Results Included

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    Help Green Algae Water Results Included

    Hello and help - the algae started a few weeks ago and at first it was controllable. Possibly started in my solar cover that had been sitting outside for a few months before I put it on the pool end of August. Last 10 days rain in Tennessee everyday but light rain. Yes I neglected it and left the solar cover on it to catch the leaves. Today Pentair chlorine generator still working as it has been. The bottom has pretty thick algae Green.....

    Running my Polaris 280 now and have swept the bottom with a brush water is stirred up and green.

    I wanted to ask you here on the forum before I did anything. I have owned the pool for 10 years and have a pretty good handle on it most of the time. It is my first year with the Pentair IC40.

    Every now and then your pool reminds you are not always in control.

    Any advice is helpful for treatment procedures.

    Free Chlorine too high to test or at least 9 Taylor 2006 test kit.
    Combined Chlorine around 0
    PH between 7.6 and 7.8.
    Sanitizer CYA between 70 and 80.
    Calcium Hardness 240
    Alkalinity 110
    Temp 78 - 80
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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    Re: Help Green Algae Water Results Included

    27' Above Ground, 18K gallons, 1.5 hp pump, Cartridge Filter, TF-100 Test Kit

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    Re: Help Green Algae Water Results Included

    Mbeale sums it up.....You must SLAM the pool.

    The article in Pool School needs to be understood and followed precisely and your pool will clear up.

    Your FC that you need to maintain is 28 ppm. I doubt you have the Taylor K2006 to measure high enough since you report "too high to test".
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Texas Splash's Avatar
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    Re: Help Green Algae Water Results Included

    SLAM is correct. Please see the Chlorine/CYA chart link below in my sig and adjust your FC to the applicable SLAM level for your CYA. Use only regular liquid bleach, and turn-off your SWG during the SLAM. Follow everything you see on the SLAM link and it will kill the algae. Make sure you maintain that FC level until you pass all 3 SLAM criteria. Good luck!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: Help Green Algae Water Results Included

    Quote Originally Posted by pondfishr View Post
    Hello and help - the algae started a few weeks ago and at first it was controllable. Possibly started in my solar cover that had been sitting outside for a few months before I put it on the pool end of August. Last 10 days rain in Tennessee everyday but light rain. Yes I neglected it and left the solar cover on it to catch the leaves. Today Pentair chlorine generator still working as it has been. The bottom has pretty thick algae Green.....

    Running my Polaris 280 now and have swept the bottom with a brush water is stirred up and green.

    I wanted to ask you here on the forum before I did anything. I have owned the pool for 10 years and have a pretty good handle on it most of the time. It is my first year with the Pentair IC40.

    Every now and then your pool reminds you are not always in control.

    Any advice is helpful for treatment procedures.

    Free Chlorine too high to test or at least 9 Taylor 2006 test kit.
    Combined Chlorine around 0
    PH between 7.6 and 7.8.
    Sanitizer CYA between 70 and 80.
    Calcium Hardness 240
    Alkalinity 110
    Temp 78 - 80
    If you have a Taylor K2006 FAS/DPD test you are capable of measuring FC up to 50ppm.

    Which exact test kit do you have?

    With CYA at 80ppm you will need to SLAM at FC 31ppm.

    Please read the SLAM procedure in pool school as recommended in the post above.

    Dom
    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Re: Help Green Algae Water Results Included

    Taylor K2006 FAS/DPD Correct

    I tested again and it is Free Chlorine - 12. 60 drops 871 at .2 per drop.

    Is table in the link saying I need to get my Chlorine up to 28.

    I only had a single gallon of liquid shock from Home Depot. I dumped it in.

    How much bleach do I most likely need. This is a 18k gallon pool.

    I am headed out to get another 5 gallons of bleach.
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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    Re: Help Green Algae Water Results Included

    I added a total of three gallons of bleach. Free chlorine level 28. Going to bed will check on it early tomorrow morning. Thank you to everyone for your help!!
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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    Re: Help Green Algae Water Results Included

    Quote Originally Posted by pondfishr View Post
    I added a total of three gallons of bleach. Free chlorine level 28. Going to bed will check on it early tomorrow morning. Thank you to everyone for your help!!
    It's fine to use the 10mL sample for a resolution of 0.5ppm. You will save on reagents that way.

    If your CYA is between 70-80ppm as you previously posted, it would be best to round up to 80ppm and use a FC of 31ppm for the SLAM.

    Dom
    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Texas Splash's Avatar
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    Re: Help Green Algae Water Results Included

    Also feel free to shop around at Wal-Mart and local stores that have bleach. Generic is fine as long as it's regular bleach, non-scented, and nothing fancy (i.e. splashless). Good luck!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: Help Green Algae Water Results Included

    How's that pre-sunrise FC reading?

    Dom
    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Re: Help Green Algae Water Results Included

    And don't forget one of the most important parts of SLAM is maintain! SLAM is not a one time add. You need to be adding and checking every hour or so during the first few days. Once the FC drop starts to level off you can stretch out the time between testing and adding.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

  12. Back To Top    #12

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    Re: Help Green Algae Water Results Included

    Update at this point it is clearing up pretty good. Still a little cloudy but the amount of algae that settles to the bottom after brushing has dropped off considerably. My work has been crazy the last couple of days and this is the first time I have had to check back in. I will send another update tomorrow. Thank you to everyone for your advice.
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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    Texas Splash's Avatar
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    Re: Help Green Algae Water Results Included

    That's a good sign. Stick with and maintain the FC. You'll be amazed at the transformation over time. Have a nice evening.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Re: Help Green Algae Water Results Included

    Everything is good. I think I am at the point where I can close the pool for the year. Thank you everyone for your assistance!!!
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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    Re: Help Green Algae Water Results Included

    Quote Originally Posted by pondfishr View Post
    Everything is good. I think I am at the point where I can close the pool for the year. Thank you everyone for your assistance!!!
    Did you complete a SLAM by meeting all 3 criteria (pass OCLT, CC at 0.5ppm or less, water clear and free of any living or dead algae)?

    Dom
    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Re: Help Green Algae Water Results Included

    Water is clear and the pool is now closed for the winter. Sad weekend but glad to get the cover on it before the rest of the leaves come falling down.
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

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