Recent content by a3po911

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    How to do a correct CYA test

    I added 5 lbs CYA raising 15ppm to see if it can hold chlorine tomorrow.
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    How to do a correct CYA test

    I’m struggling to balance my pool water. I performed a SLAM for almost a week and passed the OCLT, the water still won’t hold chlorine under sunlight, but looks clear and crystal. This made me question my CYA level again. Both Leslie's test and my own showed a reading of around 50 before, and...
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    Hayward T-cell 15 and Balance issue

    I bought one Tylor K-1738 kit for 0-3 ppm range, and another cheap strip from Amazon, 0-2 ppm range.
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    Hayward T-cell 15 and Balance issue

    I've bought a copper test kit, should be arrive soon, I don't trust Leslie too, just use them for copper and phosphate test.
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    Hayward T-cell 15 and Balance issue

    I am not using ORP to control anything, reading only. CC is about 0.2-0.3, sometime 0, I test FC every 3-4 hours on the day, twice in the night. Do we just ignore PH when doing SLAM? I always add acid once ph over 7.6. Before adding chlorine, I will add acid again to low the ph down to 7.2...
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    Hayward T-cell 15 and Balance issue

    I started SLAM since last Thursday, since my CYA level is 50, so I tried to maintain my FC level above 20 and PH with 7.4, usually FC is was always around 22, use liquid chlorine and dry acid (food grade pure Citric acid bought from Amazon) only until this Wednesday. However, it seems nothing...
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    Hayward T-cell 15 and Balance issue

    100% sure, the ORP just a reading in Omnilogic system, it came with the Hayward HL-CHEM Sense & Dispense kit, which is used to control PH, adding acid when ph high than setting level, the cell can work without HL-CHEM.
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    Hayward T-cell 15 and Balance issue

    Now the cell stopped, 20 minutes after I turned pump on.
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    Hayward T-cell 15 and Balance issue

    I'll call Hayward tomorrow, but usually not helpful, I just don't know why my water can't hold chlorine anymore. it's been working for 6 years without any issues.
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    Hayward T-cell 15 and Balance issue

    When pump off: When pump running with 85% speed just now: The ORP drop to 280 and ph is 7.7, now,, this morning was 600 and 7.5, the ph is also raising fast, today is 50% rainning day.
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    Hayward T-cell 15 and Balance issue

    I didn't notice the water temp could be a problem, my old cell was working fine for 6 years, I will check and test again later.
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    Hayward T-cell 15 and Balance issue

    I am using Hayward Omnilogic system to control the cell, I don't have AquaRite Chlorinator.
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    Hayward T-cell 15 and Balance issue

    My ORP doesn't control anything, reading only, which is combined with Hayward ph dispense system. the cell is controlled by %
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    Hayward T-cell 15 and Balance issue

    I plan to try sodium dichlor chlorine plus liquid chlorine to shock again tonight, the liquid chlorine I bought from homedepot and Walmart seem have problem, the smell wasl not strong at all.
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    Hayward T-cell 15 and Balance issue

    About 32K gal water, overnight test is ok, almost no chlorine loss or less than 1 ppm.
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