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Thread: Cloudy pool and slam

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    Cloudy pool and slam

    Ok guys I need make sure I'm doing things right. We opened pool few days ago and saw little algae. We slammed it on Thursday and the water is still little bit cloudy. Here were my readings today:
    FC. 17
    CC. 0.5
    PH 7.6
    TA 80
    CYA 100
    CH. 40
    Is the high cya the reason why the water is cloudy or am I not giving this enough time?
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Smykowski's Avatar
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    Re: Cloudy pool and slam

    You're not giving it enough time. The SLAM is a process that could/should take anywhere from several days to several weeks.
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    JasonLion's Avatar
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    Re: Cloudy pool and slam

    At the same time, the common CYA test reports any CYA level over 100 as 100, so your actual CYA level might be quite a bit higher (or not).

    I would lower CYA down to around 80, which would make the SLAMing process quite a bit easier.
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    Re: Cloudy pool and slam

    Ok another question do I keep fc at 17 or let it start drifting back down? And as far as my pump does it still need keep running 24/7?
    Thanks guys
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Richard320's Avatar
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    Re: Cloudy pool and slam

    Quote Originally Posted by arieyellow View Post
    Ok another question do I keep fc at 17 or let it start drifting back down? And as far as my pump does it still need keep running 24/7?
    Thanks guys
    First, re-run the CYA test using the dilution method explained in this thread. Post 8, note 9.

    Second, re-read the article on the Shock Level and Maintain process. You need to get the FC level up to shock level for your CYA and keep it there until you pass all three criteria. 17 FC is not high enough if your CYA level is above 40!

    If you're keeping up with testing FC & CC, you'll know when the CC is below .5. That's one of the three.

    When the water is clear even after brushing, and there's nothing growing on the walls, you've passed two.

    Then you run the overnight loss test. If it passes, then you allow FC to drop. If you fail, you add more bleach.

    A sand filter is the slowest of all to clear the cloudiness. It can take a week or more. A lot depends on how vigorous a strain of algae you have, how religious you are with brushing it, and how often you test and replenish the chlorine. But when you're done, your pool will be so sparkly you will be the envy of all the neighbors. You'll be able to toss a quarter in the deep end and spot heads or tails from the deck.

    Check out some stories of others who have done it.
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    Re: Cloudy pool and slam

    Ok so basically keep the chlorine raised to shock level for now and don't worry about cya? Or do I stll need go ahead and drain pool some to lower cya while still shocking?
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Mod Squad pooldv's Avatar
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    Re: Cloudy pool and slam

    You don't have chlorine at shock level for your CYA level. Chlorine CYA Chart. Rerun the extended CYA test per Richard's instructions, then lower CYA to around 80 per Jason's instructions, then resume SLAM by maintaining FC at shock level per this Chlorine CYA Chart.

    Clear as a green pool?
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    Re: Cloudy pool and slam

    Ok now I am understanding. What puzzles me is cya was perfect Thursday before I shocked with liquid bleach. What caused it to rise so high?
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Mod Squad pooldv's Avatar
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    Re: Cloudy pool and slam

    The only thing that causes CYA to rise is by adding CYA or using pucks or shock with CYA. When is the last time you added? How much did you add? Did you wait a week after adding to test? It takes about a week to fully register on the test.

    - - - Updated - - -

    What test are you using?
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    Re: Cloudy pool and slam

    Quote Originally Posted by arieyellow View Post
    Ok now I am understanding. What puzzles me is cya was perfect Thursday before I shocked with liquid bleach. What caused it to rise so high?
    Yes, what test kit are you using, or are you getting it done at the pool store?
    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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    Re: Cloudy pool and slam

    I'm using the fas-dpt test and the only thing added to the water before I shocked it was some kind chlorox brand stuff from walmart to up the ph.
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Mod Squad pooldv's Avatar
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    Re: Cloudy pool and slam

    What test are you using to test CYA?
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    Re: Cloudy pool and slam

    The one that is in that fsa-dpt kit
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Mod Squad pooldv's Avatar
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    Re: Cloudy pool and slam

    Fas-dpd is a chlorine test, not a cya test. Is it the CYA test kit in this video?

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    Re: Cloudy pool and slam

    Sorry I was looking at the wrong name on my kit lol. I have the taylor 2006.
    23k,IG vinyl,vs Hayward pump,sand filter,SWG, built 4/14

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    Mod Squad pooldv's Avatar
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    Re: Cloudy pool and slam

    Hey, alright! No worries, that is a good kit.

    I'm trying to go back and read through to see what your CYA is. But, I'm not sure. What were the last couple of tests? When and what result?
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