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Thread: Need some Balancing advice

  1. Back To Top    #1

    Join Date
    May 2012
    Location
    Danville, IN
    Posts
    21

    Need some Balancing advice

    Got my TF-100 test kit today and performed my first tests, should have sprung for the magnetic stirrer. Still getting the hang of this, so not sure how accurate. Here's where I am:

    FC - 8
    CC - 0.5
    TC - 8.5
    pH - 7.2
    TA - 210
    CYA - 70
    CH - 590
    Salt - 2900
    Water is looking pretty good and clear

    I'm questioning the CH because it's awful high. I did have to shock quite a bit after opening. That was before I found TFP so I used Cal-Hypo 73%, which might explain the high CH. Question is, what to do about it? Clearly pH and TA need some adjusting. What is the best method for tackling these values? Appreciate any guidance provided.
    25K gal IG Vinyl Ell shaped pool, Pentair SuperFlo 1.5HP single speed pump,
    Pentair SandDollar sand filter (Zeobrite), Pentai Intellichlor IC40 Chlorine Generator

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    Administrator Leebo's Avatar
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    Jul 2011
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    Eastern Ohio
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    6,607

    Re: Need some Balancing advice

    How much Cal-Hypo did you use by your best bet? Even adding 20 pounds, it would only raise your CH around 50ppm.

    Can you test the water that you used to fill the pool with?

    Either way your best bet is to use fresh water to lower the CH levels. High levels of CH can lead to scaling in your pool. As for lowering your TA the best bet is by using muriatic acid. With this high of a level you're in for a process, but it's going to pay off in the long run.
    pool-school/lowering%20total%20alkalinity

  3. Back To Top    #3

    Join Date
    May 2012
    Location
    Danville, IN
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    Re: Need some Balancing advice

    I ended up using 30 lbs of cal-hypo 73%. Looking at my CC it still needs some more shocking. I'll be using bleach this time. I'll have to point my returns up to see if they break the water surface to bring pH up. I know it creates ripples but not sure that's enough. I use well water with a filter to add fresh water. Would adding softened water help or create more issues?
    25K gal IG Vinyl Ell shaped pool, Pentair SuperFlo 1.5HP single speed pump,
    Pentair SandDollar sand filter (Zeobrite), Pentai Intellichlor IC40 Chlorine Generator

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    Isaac-1's Avatar
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    May 2010
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    SW Louisiana
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    6,711

    Re: Need some Balancing advice

    Run your CH test on your fill water and give us the numbers, this will help us know what your dealing with
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    Re: Need some Balancing advice

    I wouldn't let the pH get very high before I lowered it each time, until you get the CH down a good bit.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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