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Thread: Sulphur and high alkalinity

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    gsmith660's Avatar
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    Sulphur and high alkalinity

    I filled my pool with well water that has a sulphur smell and 300 plus alkalinity I have been adding muratic acid about every 4-5 days to bring ph back to 7.2 but alkalinity seems to not be lowering any suggestions?
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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    Mod Squad Bama Rambler's Avatar
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    Re: Sulphur and high alkalinity

    Can you post a full set of test results?
    The sulfur smell will go away but I'd keep the FC on the high side of normal.
    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
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    gsmith660's Avatar
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    Re: Sulphur and high alkalinity

    Yes I have to get a set FC is on the high side the sulphur smell is gone just wondering if that is why the well water alkalinity is so high
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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    Mod Squad Bama Rambler's Avatar
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    Re: Sulphur and high alkalinity

    Possibly but there's a lot that goes into making the TA high. Acid will bring it down though. Just keep adjusting the pH down every time it gets up.
    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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    gsmith660's Avatar
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    Re: Sulphur and high alkalinity

    I read somewhere to add the acid to the pool with the filter off so it can get a better bite on the compounds making the TA high they said do this for about 30 min then start the filter. What do you think?
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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    Mod Squad Bama Rambler's Avatar
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    Re: Sulphur and high alkalinity

    Keep the pump running. The "slug" method is a myth and it doesn't work any better than pouring it in front of a running return. It takes the same amount of acid to move the TA and there's much less danger of damaging something.
    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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    gsmith660's Avatar
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    Re: Sulphur and high alkalinity

    Thats why I asked thanks.
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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    gsmith660's Avatar
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    Re: Sulphur and high alkalinity

    I have the test results from this morning
    Ph. 7.5
    FC. 3 ppm
    Hardness. 100 ppm
    Alkalinity. 240 ppm
    CYA. 60 ppm
    Alkalinity is below 300 for the first time yeah!
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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    Mod Squad Bama Rambler's Avatar
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    Re: Sulphur and high alkalinity

    JUst keep after it and it'll keep coming down.
    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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    gsmith660's Avatar
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    Re: Sulphur and high alkalinity

    Yes it came down TA is at 160 now and still dropping Thanks.
    33' mirage 28800 gal. AG
    26" sand filter 1.5 hp pump salt water system

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