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Thread: starting to go a bit cloudy

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    starting to go a bit cloudy

    Hi.
    Using BBB method, been ok till now but when you swim underwater you can see that it is a bit cloudy. Looking down into the water it looks fine and you can see the seems on the liner quite clear. It is strange like drifting fog.
    Here are the readings I got from local store.

    fc.......0.4 ppm
    tc...0.6ppm
    cc....0.2ppm
    ph....7.8
    ak......111ppm
    cy.acid....30ppm

    18 x 33 above ground.
    We have had some very hot days and quite a few storms lately dropping pine needles into the pool. Live in NC. Please help someone. Thanks. I love this forum.
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

  2. Back To Top    #2

    Re: starting to go a bit cloudy

    Assuming you trust those numbers, it looks like you could be right on the verge of an algae bloom. No CH result is listed, but with higher PH elevated CH can cause hazy/cloudiness.

    For your CYA level you should be maintaining around 3ppm FC. You are well below that. Your CC is low, but as a percentage of FC and TC it's pretty significant.

    I'd shock if it were me, then monitor FC to maintain at least a 2-4 ppm FC residual.

  3. Back To Top    #3

    Re: starting to go a bit cloudy

    Thanks. The test results did show that the ch (hardness) was 20 ppm ???
    I am new to this so please explane just what I need to do. I was told that I could do without calcium. I haven't used shock only i gallon of 6% bleach almost every night whilst the pool has been used so often and the hot weather
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

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    frustratedpoolmom's Avatar
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    Re: starting to go a bit cloudy

    Quote Originally Posted by linwill
    Thanks. The test results did show that the ch (hardness) was 20 ppm ???
    I am new to this so please explane just what I need to do. I was told that I could do without calcium. I haven't used shock only i gallon of 6% bleach almost every night whilst the pool has been used so often and the hot weather
    Vinyl pools = the calcium isn't "as important" but the still recommended amount is 150. But that's not as pressing as your low clorine, and the cloudy water is likely the beginning stages of algae.

    So after sunset add in 3 jugs of 6% bleach, the 174 oz size jugs (the biggies) that is your 'shock' level of 14ppm for a CYA of 30ppm. (Run your filter nonstop till it clears). After 1 hour test the chlorine and make sure your FC reads 14ppm. If it doesn't you need to add enough chlorine to bring it to 14. Use the pool calculator to figure out your dosage. I think your pool is 17,800 galllons.

    The pool calculator - enter your gallons, then enter in your FC from your test in the "now" column. Enter in 14ppm in the "goal" column and the calculator will tell you how much bleach to add to bring it back to 14ppm -shock level. Tomorrow morning retest firsthing, if your FC held overnight or you lost less than 1ppm, you should be fine. If your FC reads less than 13ppm you need to add enough chlorine to get to 14 again and keep it there another night, test again Saturday morning.

    Does this make sense?

    Rangeball gave good advise, keep your FC at 3 and try upping your filtering time, usually the cloudiness takes hold and that's a sign the filter isn't running enough and the chlorine is too low.

    Keep running the filter till the haze goes away.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  5. Back To Top    #5

    Re: starting to go a bit cloudy

    For a vinyl liner pool don't worry about CH now. Low calcium can cause foaming, but don't worry now as you may not even experience it.

    I made some assumptions based on your pool size. If it's 4.5' deep and rectangle, it should be 20,000 gallons. If it's oval, it would be 17,700 gallons.

    FC levels are dependent on your CYA level. For yours of 30, recommended shock level is 13 ppm. For 20,000 gal that would be a bit over 5 96oz jugs of 6% bleach, and for 17,700 it would be just under 5 jugs.

    Add the bleach after sundown so it has the most time to work before it gets lost to UV rays the next day. The recommended way to shock is to do so until you hold the shock level overnight with no more than a 1-2 ppm loss. Keep your filter running until the pool clears then go back to whatever schedule you run your pump if you think it was working.

    Your FC residual for your CYA level is 2-6 ppm. 1 96 oz jug of 6% should give you 2.6 ppm for 17,700 gal and 2.3 ppm for 20,000 gal.

    Keep reading the stickies and articles here and you will eventually catch on. Once you get chlorine under control, you can address your PH which is a bit high. I'd also recommend you get a good test kit like the TFP kit Duraleigh sells and learn to use it.

    Good luck

  6. Back To Top    #6

    Re: starting to go a bit cloudy

    Thanks. I have printed your advise but am confused as my testing aqua kit shows readings as 3.5 up to 5-0 etc ,but you and the store are talking about ppm. Please explain.
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

  7. Back To Top    #7
    frustratedpoolmom's Avatar
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    Re: starting to go a bit cloudy

    Quote Originally Posted by linwill
    Thanks. I have printed your advise but am confused as my testing aqua kit shows readings as 3.5 up to 5-0 etc ,but you and the store are talking about ppm. Please explain.
    3.5 ppm
    5 ppm

    It's all the same....
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    frustratedpoolmom's Avatar
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    Re: starting to go a bit cloudy

    Quote Originally Posted by Rangeball
    For a vinyl liner pool don't worry about CH now. Low calcium can cause foaming, but don't worry now as you may not even experience it.

    I made some assumptions based on your pool size. If it's 4.5' deep and rectangle, it should be 20,000 gallons. If it's oval, it would be 17,700 gallons.

    FC levels are dependent on your CYA level. For yours of 30, recommended shock level is 13 ppm. For 20,000 gal that would be a bit over 5 96oz jugs of 6% bleach, and for 17,700 it would be just under 5 jugs.

    Add the bleach after sundown so it has the most time to work before it gets lost to UV rays the next day. The recommended way to shock is to do so until you hold the shock level overnight with no more than a 1-2 ppm loss. Keep your filter running until the pool clears then go back to whatever schedule you run your pump if you think it was working.

    Your FC residual for your CYA level is 2-6 ppm. 1 96 oz jug of 6% should give you 2.6 ppm for 17,700 gal and 2.3 ppm for 20,000 gal.

    Keep reading the stickies and articles here and you will eventually catch on. Once you get chlorine under control, you can address your PH which is a bit high. I'd also recommend you get a good test kit like the TFP kit Duraleigh sells and learn to use it.

    Good luck
    Ditto the TF TEst kit!

    How tall is your pool anyway....Rangeball and I both got different results...(different results on the shock level too. Rangeball, what chart are you using, is the one in Pool School incorrect, can't 1ppm make a difference?)
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: starting to go a bit cloudy

    I used Jason's pool calculator.

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    frustratedpoolmom's Avatar
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    Re: starting to go a bit cloudy

    Quote Originally Posted by Rangeball
    I used Jason's pool calculator.
    me too. Maybe I typed in something wrong. What about the CYA? I got a shock level of 14 for a CYA of 30.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  11. Back To Top    #11

    Re: starting to go a bit cloudy

    thanks everyone. Our pool is 52" high.
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

  12. Back To Top    #12

    Re: starting to go a bit cloudy

    I have just ordered a test kit from Duraleigh so hopefully now I om going to be on the same page as you all are. Thanks everyone
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

  13. Back To Top    #13

    Re: starting to go a bit cloudy

    Quote Originally Posted by frustratedpoolmom
    Quote Originally Posted by Rangeball
    I used Jason's pool calculator.
    me too. Maybe I typed in something wrong. What about the CYA? I got a shock level of 14 for a CYA of 30.
    I just ran it again using 30 CYA again, and got 13 ppm shock level again.

    Weird.

  14. Back To Top    #14
    JasonLion's Avatar
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    Re: starting to go a bit cloudy

    Shock level with CYA of 30 is:

    Pool Calculator: 13
    Chem Geek's Chart: 14
    Ben's Best Guess: 15
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  15. Back To Top    #15
    frustratedpoolmom's Avatar
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    Re: starting to go a bit cloudy

    Quote Originally Posted by JasonLion
    Shock level with CYA of 30 is:

    Pool Calculator: 13
    Chem Geek's Chart: 14
    Ben's Best Guess: 15
    Aha! That explains it. I was using the chart and you were using the calculator?

    Jason, why the variety? Is the difference between 15 and 13 nothing to worry about? Just curious how stringent people need to be.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  16. Back To Top    #16

    Re: starting to go a bit cloudy

    OK.............done new test reading

    ph..........7-6
    fc....... 5
    ta.......70
    cya.......30-50

    The water looks ok and clear but is dull , not sparkling and still slightly cloudy down near bottom. Have had filter running none stop , put in bleach as advised and lowerd ph slightly.Have scrubbed sides and bottom and kept it clean. Help please
    8000 gallon, AG, Sand filter 22", 2spd pump (2hp)
    SolarPRO XD1 Solar Heater, Hayward aqua bug vac.

  17. Back To Top    #17

    Re: starting to go a bit cloudy

    Do you have any CC reading?

    If not, at this point, all you should add is some POP, or pool owner patience

    Assuming the haze was algae, it can take the filter some time to clear it all.

    What type of filter do you have again? How are your pressure readings?

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