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Thread: calcium and cloudy

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    Join Date
    Jun 2010
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    freeville ny
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    calcium and cloudy

    My numbers:

    pH 7.4
    TA 90
    FC 3.5
    TC 0
    CC 3.5
    CYA 60
    CH 100

    My problem is this crusty white stuff on teh sides of teh vinyl liner. I am assuming this is scale? The water has been cloudy all season, but when I read about cloudy, it has been in association with high CH. Mine seems on the low end, yet cloudy and scaling. Suggestions?

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    Mod Squad JohnT's Avatar
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    Re: calcium and cloudy

    Are you using any powdered chemicals for chlorination or pH adjusting?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: calcium and cloudy

    no powders....bleach bleach and bleach

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    dmanb2b's Avatar
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    Re: calcium and cloudy

    Hi there...Just curious, how are you testing? It sounds like high CH or a filter issue

    With CYA at 60, your FC is too low. Unless you are running a SWG you should be targeting 5-7ppm. Also, is your CC reading a typo?
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

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    JasonLion's Avatar
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    Re: calcium and cloudy

    Your description sounds exactly like calcium clouding and scaling, however your test results don't indicate any risk of scaling. Is there any possibility your test results are wrong? For example, I tend to not trust test results from pool stores or test strips.
    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

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    Re: calcium and cloudy

    I keep thinking it is a mistake as well because the numbers don't sound right for the problem...at least from what i have read. I am using the tf 100 kit. I believe I am following the directions correctly... as far as cc...that was the number I got, but i had been away and didn't add any chlorine before I tested. I will test in the morning and repost all numbers.

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    Re: calcium and cloudy

    No offense meant here.

    Quote Originally Posted by poochner
    FC 3.5
    TC 0
    CC 3.5
    Total Chlorine 0. It was a typo Probably was FC 3.5, TC 3.5 and CC 0, although I'd like OP to confirm.

    Maybe a list of the last products to have been dumped into the pool would help. Cal-Hypo into the skimmer is a source of much mayhem 'round here, but mostly for sand filters as people don't want to dilute it firsthand. I have to admit, crusty white stuff at the side of the liners (which height? water level?) is almost unheard of, here.

    Like it is said on http://www.poolsolutions.com/gd/cloudy.html, there could be an hundred causes for cloudy water. More simply put, there's some fine particles floating, which could be: Calcium Carbonates (unlikely with your pH), Heavy Bather Load, Growing Algaes, Calcium Buildup in Sand Filter... etc. Surely there's a trick you can do at home with part of this crust to identify if it is calcium, sand [EDIT] read salt instead of sand [/End Edit] or whatnot. Alas, I do not know it. When we're able to identify what it is, we can steer you in the right direction.

    My bet is also on faulty testing, occured way too often here and sadly we often realize that after the customer's gone. Often the CH test will turn blue, then go back to purple... might do this on a dozen or drops or more and leads to a false reading. and a dozen of drops means 120ppm off!

    Best of lucks!
    Pool: None, and All.
    ''What's really interesting is finding some way to explain some technical concepts with simple terms so that everyone might understand, to vulgarize.'' CaOCL2

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