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Thread: Burning eyes

  1. Back To Top    #1

    Join Date
    Sep 2016
    Location
    Tampa, FL
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    Exclamation Burning eyes

    Help, I need this to be taken care or my wife will get a pool service

    I had algae and followed the instructions to SLAM my pool. Now the water is crystal clear. After a few days we finally get back in the pool. However eyes are burning and the smell of chlorine is very strong.

    Tested the water and below are the results:

    FC: 22.5
    CC: 0
    TA: 110
    Ph: 7.6
    CA: 320
    CYA: 100

    I know the CYA is high but I inherited the pool from a heavy user of tabs...so obviously my FC level had to compensate. But maybe I pulled the trigger too soon to get in given that I'm at 22.5??

    Please help! Thanks
    Tampa, FL 16,000 gallons, concrete in ground screened pool, Sta-Rite 70sqft cartridge filter, Marathon 3/4 Pump, city water. I test with Taylor K-2006

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    JoyfulNoise's Avatar
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    May 2015
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    Re: Burning eyes

    You can't accurately measure your pH when your FC is above 10ppm. Your pH could be very low since high FC skews pH to higher values.

    Let your FC come down below 10ppm then remeasure.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Burning eyes

    Thank you Joy! However before slamming Ph was at 7.6 too. Should I expect a big swing in Ph? Could FC be the cause? Not questioning your advise just trying to understand.


    Tampa, FL 16,000 gallons, concrete in ground screened pool, Sta-Rite 70sqft cartridge filter, Marathon 3/4 Pump, city water. I test with Taylor K-2006

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    JoyfulNoise's Avatar
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    Re: Burning eyes

    Quote Originally Posted by colon001 View Post
    Thank you Joy! However before slamming Ph was at 7.6 too. Should I expect a big swing in Ph? Could FC be the cause? Not questioning your advise just trying to understand.


    Sent from my iPhone using Tapatalk
    Adding lots of bleach can temporarily raise pH due the excess lye in bleach (assuming you haven't added any acidic sources of chlorine, i.e. trichlor). Chlorine reactions are acidic in nature (they generate a proton, H+) and so will lower the pH over time. So your pH could be anywhere at the moment and the phenol red indicator will not be accurate when your FC is greater than 10ppm.

    As for swimming in a highly chlorinated pool, while it is generally true that it is safe to swim up to shock levels of FC, it is not necessarily comfortable. Chlorine can interact with sweat and oils in your skin to form highly irritating CCs. This is why there is often a delayed smell when swimming - the water smells fine when you're in it but when you get out, your skin has that "gross" chlorine smell. The smell is the residual chlorine interacting with your skin to form CCs. I, personally, do not like swimming in a highly chlorinated swimming pool and, if I ever have to elevate my chlorine levels, I almost always keep my family out of the pool to avoid such issues. Others can swim in highly chlorinated pools and feel fine. It's a very person-speicifc response.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

  5. Back To Top    #5

    Join Date
    Sep 2016
    Location
    Tampa, FL
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    25

    Re: Burning eyes

    Thank you Joy very helpful and enlightening!! Appreciated


    Tampa, FL 16,000 gallons, concrete in ground screened pool, Sta-Rite 70sqft cartridge filter, Marathon 3/4 Pump, city water. I test with Taylor K-2006

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