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Thread: High chlorine with SWG

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    High chlorine with SWG

    Hi I have had high chlorine level in pool sence it was filled 3 months ago, this is the test results now.
    Pool is about 13,000 gal that is the est the pool builder gave me its 14 + 28 3 feet deep to 6 feet at deep end.
    fc 6.0
    PH 7.4
    TA 90
    CH 320
    CYA 100
    salt 3000
    I have had the swg turned down as low as it will go and Chorine is stuck high even with the sun shine bright here in florida.
    only thing that did happen was water got slight milky look to it so turned swg back to 50 and water is clear again.
    I am new at this but am figuring it out got Ph and Ta under control but this high chorine is more difficult to get down without making the pool green or unsafe to swim in. Swg is cycling off and on so I know its not stuck on all the time but I have never got chorine below 5 ppm yet.
    Thanks for any help
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

  2. Back To Top    #2
    ktdave's Avatar
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    Actually, with your CYA level at 100 ppm, you need to keep a minimum FC range of 8 ppm to 15 ppm. The higher the CYA, the less effective the FC will be as a sanitizer.
    11,000 gal. gunite w/midnight blue and white pearl PebbleTec
    Intelliflo 4x160 pump
    Intellichlor IC-20 SWG
    Pentair cartridge filter 420 sq. ft.
    Mastertemp 400K BTU heater
    Legend Platinum cleaner
    Pool School
    JasonLion's Pool Calculator
    TF Test Kits

  3. Back To Top    #3
    What kind of tests are you using? drop kit? strips? pool store?

    With your high CYA (which may actually be higher than 100) an FC of 6 is not high. Ben's chart doesn't even go that high!

    CYA.............Min......Max.....Shock
    0..................1.........3.........10
    10 to 20........2.........5.........12
    30 to 50........3.........6.........15
    60 to 90........5........10........20


    (I know the debate about SWG's and FC level, so you might be able to get away with a little lower FC)

    Anyway, this could explain your cloudy water... not enough FC (even at 6ppm) to keep the water clean with your high CYA

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  4. Back To Top    #4

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    Useing taylor complete high k2005 kit. tryed pool store, after pool was filled up and thats why the CYA is so high they checked water and sold me a bucket of cya and said to add it all as it was to low at 40ppm cya and now thats why its so high. now I do not trust the pool stores at all all they want to do is have you buying stuf so they keep your pool going crazzy sence I have got my own good kit I have used less stuff and water is looking better.
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

  5. Back To Top    #5

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    My chlorine level stays around 7ppm now with my SWCG set to 50%. CYA is at 80 as per SWGC manufacturer recommendation. Pool in full sun most of the day. At that FC level I haven't had any issues or problems with water clarity.

    I did add borax to get borates up around 40%, but don't know what relationship, if any, that plays.
    7000 gallon IG freeform w/ 6 ft. spa, 21 ft weeping wall, Hayward SP4020NS Northstar pump, Colorlogic LED’s, DE6020 filter and H400IDL2 400,000btu heater. Aqua logic 8 zone controller with Aqua Rite salt chlorine generator, Stonescapes pebble finish – Aqua Blue and flagstone coping, stamped/stained concrete deck

  6. Back To Top    #6
    Forgot to say welcome to TFP!

    I don't know about your SWG issue and why it will not produce a lower amount of FC, but it seems to me that you need that much to keep your pool clean anyway.

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  7. Back To Top    #7
    divnkd101's Avatar
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    Quote Originally Posted by txborn
    My chlorine level stays around 7ppm now with my SWCG set to 50%. CYA is at 80 as per SWGC manufacturer recommendation. Pool in full sun most of the day. At that FC level I haven't had any issues or problems with water clarity.

    I did add borax to get borates up around 40%, but don't know what relationship, if any, that plays.
    How long are you running your pumps in a days time??? Just curious.
    MIKE

    21K Inground Custom w/ Spa (Gunite/Plaster), SWCG, Hayward Northstar, Polaris 280, Hayward Color Logics, Jandy PS-8

  8. Back To Top    #8

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    I changed to running pump 1 1/2 hours in the morning and the same in the evenings. Used to run it 3 hours at once. It's a small pool with a huge pump. Getting about 3 turnovers a day.
    7000 gallon IG freeform w/ 6 ft. spa, 21 ft weeping wall, Hayward SP4020NS Northstar pump, Colorlogic LED’s, DE6020 filter and H400IDL2 400,000btu heater. Aqua logic 8 zone controller with Aqua Rite salt chlorine generator, Stonescapes pebble finish – Aqua Blue and flagstone coping, stamped/stained concrete deck

  9. Back To Top    #9

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    I have been running my pump 6 hr a day. so guess High cl will be nothing to worry about was going by the levels they give you with the test kit, but guess them levels are mostly for a reg pool not a sw pool so will not worry about higher then recomended chroline level.
    Thanks for the help in this matter.
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

  10. Back To Top    #10
    TripleB4me's Avatar
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    Quote Originally Posted by txborn
    My chlorine level stays around 7ppm now with my SWCG set to 50%. CYA is at 80 as per SWGC manufacturer recommendation. Pool in full sun most of the day. At that FC level I haven't had any issues or problems with water clarity.

    I did add borax to get borates up around 40%, but don't know what relationship, if any, that plays.
    Pentair, my SWCG manufacturer, recommends FC at 2-3 ppm with a CYA range of 50-75 ppm.
    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

  11. Back To Top    #11

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    well I took water samples to two different pool stores and this is what I got for readings.
    Leslies came up with this.
    Fc 5
    TC 5
    PH 7.6
    TA 80
    CH 240
    CYA 30
    Phospates 100
    salt 3100

    Pinch a penny's test.
    FC 5
    PH 7.6
    TA 85
    CYA 100
    salt 2900
    pinch a penny did not test TC or phosphates.

    my test kit came up with these numbers.

    FC 6
    PH 7.4
    TA 90
    CH 310
    CYA 50
    could not test salt as do not have a kit for that.
    Guess replaceing about 2 feet of water today worked to lower CYA But do not know if mine is right or them other two.
    CYA level is anywere from 30 to 100, but I belive my 50 is right and theres is wrong.
    water is real clear so everything is good but the high chrorine level but that should come down now that CYA is at 50.
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

  12. Back To Top    #12
    new2pools's Avatar
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    Can someone please tell me what SWG stands for??? I keep seeing that and have looked all over the board and cannot find what it stands for.
    Thanks
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

  13. Back To Top    #13
    divnkd101's Avatar
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    Salt Water Generator. Truly it should be a Saltwater Chloring Generator (SWCG). Hope that gives you your answer.
    MIKE

    21K Inground Custom w/ Spa (Gunite/Plaster), SWCG, Hayward Northstar, Polaris 280, Hayward Color Logics, Jandy PS-8

  14. Back To Top    #14
    new2pools's Avatar
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    thanks!
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

  15. Back To Top    #15
    Guest
    Most salt pools operate very well with a FC of 4-6 ppm and a CYA of 60-80 ppm. I keep mine at 4 ppm with a CYA of 70 ppm and never have algae or cloudy water. Your chlorine level is a combination of your pump run time and generator output. What kind of SWG do you have? Also, the K-2005 kit uses a color comparator and many people (mostly men, in fact) have touble reading the shades of red. You might want to consider getting an FAS-DPD chlorine test, which is a drop count test with a color change from red to colorless and an accuracy as great as .2 ppm
    For testing salt levels the AquaChek salt test strip titrators are extemely accurate. I have repeatedly checked the results obtained from them against both titration tests for chloride and against properly calibrated salt meters and they are always right on the money.

  16. Back To Top    #16

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    I have the Aqua Rite swg.
    I was told at the pool store here that this kit was there best one so I bought it as I am new and learning and the kit the pool builder gave us at there pool school was just a cheap 12 dolar one that was way off on everything, old test agents I am guess with that.
    thanks waterbear for the help .
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

  17. Back To Top    #17
    Guest
    With a 6-8 hour pump run time I would expect your output on the unit to be in the 30-50% range to generate the proper amount of chlorine for your size pool. Remember, it can take about a week for your chlorine levels to stabilze when you make adjustments to either your pump run time or cell output percentage.

  18. Back To Top    #18

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    Thanks waterbear.. will set the swg at 30 and pump to 6 hr to start and see how things go from there.
    14+28 Gunite with Pentair Pinnacale pump and pentair Clean & Clear Filter and Aqua Rite SWG

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