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Thread: Results look good - But eyes sting

  1. Back To Top    #1

    Join Date
    Jun 2010
    Toronto, ON. Canada

    Results look good - But eyes sting

    We were in the pool for over 12 hrs on one day during the weekend and our eyes were really stinging. We have been in pool just as long before but never had this issue.

    We have had a lot of rain and thunderstorms, could this be the cause? What does rain water do to pools? How does it affect the chemistry?

    Here are our readings. Should we adjust anything?

    Temp 82
    Salt 3500
    FCL 4
    TCL 4
    CCL 0
    PH 7.5
    APH 7.5
    TA 110
    ATA 110
    CYA 40
    CA 200
    16'x34' Inground Vinyl Pool. 65,500L. Hayward S244T2 24 Sand Filter. Hayward 1hp Super Pump. Raypak PR266 EN 266,000 btu,. AquaRite SWCG. Aqualamp LED 2 w/ remote

  2. Back To Top    #2
    ThinkPad's Avatar
    Join Date
    Jul 2014
    East Coast

    Re: Results look good - But eyes sting

    Did these results come from a pool store by any chance? I do not recognize APH, ATA, and CA. Everything else looks good. If it was tested by a pool store, the results are probably off.

    Rain water can decrease the pH of the pool. A low or high pH can cause eye stinging, but your pH is within the ideal range (7.2 - 7.8).
    Bobby (my pool)
    18,000 gallon in ground/white plaster
    Flotec pump/Aquatech MYB100 single cartridge filter - runs 6 hours/day in evening during summer

  3. Back To Top    #3
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: Results look good - But eyes sting

    Im sure they did, and if they are even close, there is nothing there to suggest stinging eyes. I'd say the 12 hours in would be the reason more than anything. If chems were going to make your eyes sting, it would happen sooner.

    As for rain, not much unless there is a large amount, ( as in several inches) surface run off into your pool, or an extremely small pool. The rain certainly did not cause the stinging eyes.
    TFP Moderator
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  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Results look good - But eyes sting

    After that amount of time, I am not sure there is a way to avoid eye irritation regardless of how the water is balanced.

    Remember that as you are in the pool, you are generating CC which can be irritating. They are constantly burned off by the sun and broken down by the FC, but they could still be a factor and not show up in the test after the fact.
    Jason, TFP Moderator
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