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Thread: Water balance

  1. Back To Top    #1
    bof's Avatar
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    Water balance

    Hi

    FC 8.8
    TC 9.0
    PH 7.6
    TA 110
    CYA 85

    I am using 2 ltr a day of muriatic acid to bring my ph down to 7 to lower my TA but every time I test my pH it is around 7.7 I am also using 1 ltr a day of liquid chlorine to raise my FC to 9.6, is this normal any advice appreciated.
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    Smykowski's Avatar
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    Re: Water balance

    Your chlorine use sounds normal, but the acid use seems high.

    Couple questions...
    Any aeration sources? Fountains, waterfalls, etc.?

    Any reason why you're taking the pH so low with every acid addition? Any reason why you want to lower TA?

    I would try lowering the pH to only 7.5 or 7.6, then monitor it closely to see how high it goes. Some pools tend to settle at 7.7 and 7.8; if yours is one of them, trying to maintain a pH much lower than that will be futile.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    bof's Avatar
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    Re: Water balance

    Hi Smykowski

    No aeriation at all. The TA was at 160 so I have been trying to lower it to 90 and to lower TA I am lowering my pH to 7 and my CYA was over 160 Now 85 and I am doing a water change to lower the CYA
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

  4. Back To Top    #4
    Smykowski's Avatar
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    Re: Water balance

    I would try leaving it alone but monitoring pH. If it settles at 7.7, just leave it there.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  5. Back To Top    #5
    bof's Avatar
    Join Date
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    Re: Water balance

    Thanks
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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