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Thread: Wits end with cloudiness!

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    Wits end with cloudiness!

    Opened our pool about two weeks ago, Been holding it at shock levels for two weeks running the filter 24/7. Now its holding the fc pretty good overnight (20fc) and you can see down a little further on the sides but its still cloudy! All of my other tests are within range so I am not sure what the heck is going on. Did not have near this much trouble getting it clear last year.

    I just got the tft test kit and already running low on the fc testing regents because of all the testing and its not even clear.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    JasonLion's Avatar
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    Re: Wits end with cloudiness!

    There might be something wrong with your filter. Have you backwashed the filter recently? How is the filter pressure doing? Is the main valve set to the filter position?
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Wits end with cloudiness!

    Probably backwashed it 3 times in two weeks. Pressure holds steady under 20 when set on hi. I switched the pump to low thinking maybe it was rushing the water through the sand too quick and not filtering good. Had the pump on hi for a week straight. Last year we got it clear just running it on low.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Butterfly's Avatar
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    Re: Wits end with cloudiness!

    If your water does not show improvement each day, you may want to clean your filter.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Re: Wits end with cloudiness!

    I am in South Jersey. Pollen was very heavy about two weeks ago when I opened. You also opened two weeks ago. Do you have many trees in your area? Try a skimmer sock or DE in your sand filter. I did and it worked slowly but cleared it up.

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    Re: Wits end with cloudiness!

    Well, Opened up the filter and stuck the hose in there and got some bugs and other gunk out of there, But just looked like your usual backwash stuff. It was heck getting that top back on there. That was 3 days ago. Still running the filter and FC is still up around 20 but dropped drastically the other day by about 10. So got it back up to 20. Still not clear although you can see a little further down the side. Ran the shark about 24 hrs straight and thought that may help but it looked the same afterwards.

    Thinking about just getting in there and scrubbing away. Its hard to reach everywhere from the sides with no deck.

    Bought 3 gallons of 10% Chlorine and planning a battle with it this weekend. So far we have went through about 9 Sams boxes of Clorox at about $8 each. Now the 3 gallons of 10% at $4 each. This is getting quite expensive. Should I just get some bags of shock? Once I get it clear its easy to maintain the FC level, But getting it to that point is getting frustrating!

    And we have almost NO trees in this area. Tried the DE but seemed like the filter was straining and barely pumping so it got me worried and I backwashed it out.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Re: Wits end with cloudiness!

    maybe your CYA level is too high and you're in chlorine lock
    14'x28' vinyl liner inground 3.5-6' deep wedge hopper 15000 gal (used to say 13000- I calculated wrong), 1 hp pump with sand filter, 2 returns, 1 fountain, traditional chlorinated, pool house.

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    Re: Wits end with cloudiness!

    Quote Originally Posted by JMarch
    maybe your CYA level is too high and you're in chlorine lock
    Thought that too, But last I checked it was around 70-80. The pool is in the sun from almost 7am-8pm so I would think this would be a good level. I will be checking it again.
    Also starting to think it may have been a mustard algae problem. I recall when opening a yellowish looking algae all around the pool, But the water was clear....You could see the bottom. After sweeping and adding tons of bleach now we have this cloudiness.

    Might not have got it up to Mustard Algae shock levels? Highest I got it at one time was up to 30. Just dont want to damage the liner.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    dmanb2b's Avatar
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    Re: Wits end with cloudiness!

    If you are really sure about the 70-80 CYA level, you should raise your FC to between 28-32ppm. Even 35 ppm for a short period of time should not damage the liner with CYA at that level. With FC at 20 ppm, your not at shock level.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

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    Re: Wits end with cloudiness!

    Tested today
    FC Above 5 (not sure how much until my new regeants arrive)
    CYA 35
    PH 6.8
    TA 120

    Still cloudy and pump still running 24/7

    Trying to form a plan of attack this weekend. What to attack 1st? Going to stock up on some 12% tomorrow so I have enough to bring the fc up high enough.

    Do I raise the PH or CYA or Chlorine 1st?
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Butterfly's Avatar
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    Re: Wits end with cloudiness!

    First, adjust pH to 7.2ish and then shock the pool using Pool School instructions here: pool-school/shocking_your_pool

    Increase the CYA level after you are done shocking.
    The lower CYA level has a lower shock level which requires less chlorine, less jugs to haul and saves more $.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Wits end with cloudiness!

    okay, FC should be down to zero after the sun all day. Ph is reading around 7.2.

    Poured 5 gallons of 6% bleach in tonight. We will see how it fairs in the morning. I will scrub away tomorrow.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Mod Squad zea3's Avatar
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    Re: Wits end with cloudiness!

    How did the CYA get from 70-80 to 35? Did you drain any water?
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  14. Back To Top    #14

    Re: Wits end with cloudiness!

    I was wrong on the CYA reading before, Sorry.

    Pool still cloudy after a good scrubbing this morning. Just checked the FC and CC levels and they are
    FC 15 and CC 1
    Looks like my CYA reading is lower then 2 days ago though and I have not drained anything. Or could the shocking affect this reading?
    CYA little below 30
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    Re: Wits end with cloudiness!

    well I got in today and scrubbed that sucker good. Got alot of algea out from under the ladder. Maybe thats what was causing it to be cloudy? Thinking we will take the ladder out after the summer and get a pool cover.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    frustratedpoolmom's Avatar
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    Re: Wits end with cloudiness!

    Shocking doesn't affect the CYA reading. It's a difficult test to perform - varying conditions when you perform the test can affect the results you get. Try to perform the test under the same conditions all the time (outside in sunlight, with your back to the sun so that your body shades the test vial. Indirect or indoor lighting can make the test results different.
    Helpful links: Pool School; CYA/Chlorine Chart
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    Re: Wits end with cloudiness!

    High FC levels can have the CYA test read artificially low. This is because the chlorine bound to CYA may not form the melamine-cyanurate complex that causes the cloudiness that you measure. One can add some drops of R-0007 (thiosulfate reagent which neutralizes chlorine) at roughly the rate of 2 drops for every 10 ppm FC to the pool sample before you add the CYA reagent. That might help. If you do this, let us know what happens.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
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    Re: Wits end with cloudiness!

    Well got home today from work after the kids swam all day (in milky water) and took some readings.
    FC 5.5
    CC .5
    CYA looks to be around 50 now.
    TA looks to be around 140. Not sure about when to stop adding drops when it turns "red". Looks light pink to dark pink to me.

    Still milky.......This is driving me crazy. How can I tell if my sand filter is channeling? Or should I give it more time to clear out the Algea I scrubbed out from under the steps yesterday?
    Also been running the pump on high for the last two days. Should I run it on low so maybe it will filter better? I am feeling lost after spending all of this dough on Bleach and the tft test and extra regeants. To top it all off my daughter plans on having a pool birthday party this weekend.
    21" Round Cornelius above ground pool, 2 hp 2 Speed laser pump, 400lb sand filter, 25 mil Virgin Vinyl Liner

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    JasonLion's Avatar
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    Re: Wits end with cloudiness!

    On the TA test: add drops till it starts to change color to anything in the red/pink/yellow family. Then continue adding drops as long as the color keeps changing. When you add a drop that doesn't change the color any further you are done and you do not count the final drop that did not change the color any further.

    A sand filter can easily take a week to get the pool completely clear. If everything is working you should see a visible improvement from day to day. If you are not seeing any overnight FC loss and the water is still not improving, it is time to investigate if the filter is working properly.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Wits end with cloudiness!

    Fatheroffive, you need to keep your FC at shock level until your pool passes an overnight loss test.
    17,000 gal. 28 ft. round AG doughboy, about 15 years old. 1.5HP Hayward pump, Doughboy Silica II filter.

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