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Thread: Best Way To Test Chlorine Daily

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    Best Way To Test Chlorine Daily

    Hello,

    What is the generally accepted best way of testing chlorine on a daily (or two) basis?

    I have the TF kit, which I love. The chlorine test portion of that kit is great and easy to use. Is that what most people use on on daily basis? In that kit is a sub-kit, believe a Taylor 1000 kit for testing chlorine and PH on a regular basis. The PH side is fine. My problem is with the chlorine side of the test. I find it VERY DIFFICULT to differentiate the shades of yellow. Is there a better way to test chlorine daily? Should I just just the TF chlorine test, which is fine. It just take a couple minutes longer. Is there another test that I'm not aware of for the "regular" testing of chlorine?

    As usual, great forum. And thanks for all of the help.

    Mister Mister
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  2. Back To Top    #2
    I, too, have the TF kit and find the Taylor daily chlorine test very hard to differentiate between. I don't even use the chlorine part now, just the pH side. I just use the TF drop test for the chlorine. I want to keep a very accurate record so I don't start getting any problems and I just can't do it with the Taylor test. I have a SWG and usually test chlorine daily ar at the very longest every 2 days, which is not very often for me to go that long.
    ~39,000 gallon True L, 43x28x18, Steel Wall, Vinyl Liner; 2 skimmers, 2 bottom drains, 3 returns, 1 dedicated cleaner line with Polaris booster pump; Polaris 280
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  3. Back To Top    #3

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    Thanks Sarah,

    Yes, I'm a new user of a SWG and trying to come to an understanding with it on how hard it needs to work. I'm had it on only for a week or so. So I am testing daily, which is very easy with the drop test, which is great. A clear defined color change. I think I may have to use your approach to use the Taylor test for PH, and the TF drop test for FC. I can do that. I was just curious if poolers were maybe using a different daily FC test. Party on.

    Mister Mister
    IG 18 x 36 Vinyl
    30,000 Gallons
    AutoPilot SWG
    Aquabot T2
    Hayward S244 Sand Filter
    Hayward 1hp RS1000 Pump
    ------------------
    Leisure Bay Spa - Flores - 500 Gallons
    AutoPilot SpaPilot - Not Yet Installed

  4. Back To Top    #4
    Mod Squad JohnT's Avatar
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    The best advice I can give is to perform the test in indirect sunlight with a white card as the background. Some people just have an easier time distinguishing the colors, but most folks have a harder time with the pH test. I personally do the color matching test daily, and the drop test on Saturday mornings.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
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  5. Back To Top    #5
    mas985's Avatar
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    After three years of running this pool, I pretty much know what to expect so I generally don't test more than once per week and sometimes every other week. With a SWG, the chlorine levels are fairly predictable unless something unique occurs. Pool party, heavy rain, etc. can throw things off so that is when I test more often. Every pool has unique conditions so you may have to test more often but you will soon learn what to expect and how quickly things change.
    Mark
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    I too have found that I just get a feel for my pool after a while of testing and just begin to add the approximate amount of bleach that I use per day. I will still test, daily, every other day, or maybe every third day. Rarely will I go a week without testing.
    steve

    Above Ground / 18' Round / Vinyl Liner / Sand Filter / 100K Gas Heater / Salt Added / No Nature2

  7. Back To Top    #7

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    Being a newbie pool owner... I test almost daily. I use the ColorQ for daily testing and the TF100 for weekly testing.

    I too can't tell the differance in colors with the CL/PH. I really like the drop test tho.
    20k Gunite/Prism Blue-Pebblesheen, Pentair Tagelus TA-100D Sand Filter, Heliocol Solar Water Heater, 2 bubblers and 2 waterfalls installed 2007, 3hp IntelliFlo VS Pump 011018 installed 2013, Aquabot Turbo T4 RC and Stenner 45MHP10 w/The Liquidator container installed 2012.
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  8. Back To Top    #8

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    Yes, I understand the concept of testing FC every few days, or week or so, after you learn what to expect. No problem with that. But in my situation, I have a newly installed SWG, and we are trying to get to know each other. I'm sure I'll reach the point where FC testing will become a little less regular.
    IG 18 x 36 Vinyl
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    Hayward 1hp RS1000 Pump
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    Leisure Bay Spa - Flores - 500 Gallons
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  9. Back To Top    #9

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    MisterMister... You are doing the right thing by testing daily you will learn your pool much faster and see exactly what your pool is doing. I test every day (ph&cl) It is the best way to see what is going on and to be able to correct it quickly.
    Ric W
    My Pool
    8605 gal fiberglass, 3/4 hp pump, sand filter, aquabot cleaner, heat siphon heat pump, tiger river(sumatran) spa

  10. Back To Top    #10
    JasonLion's Avatar
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    I use the full FAS-DPD test every day when calibrating the SWG percentage. Other than that I use the simple OTO (shades of yellow) test for much of the rest of the season as a quick confirmation that there is chlorine in the water, without trying to pin down the exact amount. Generally, to know that something is going wrong with a SWG you don't need precision, you just need to know if there is chlorine or not.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  11. Back To Top    #11
    Guest
    basically the OTO test is for a quick check whether there is chlorine in the pool or not. If it's yellow you are good to go. If it's pale yellow or clear you need chlorine, break out the big kit and see how much you need. If it's orange or brown your chlorine is too high, break out the big kit again.

  12. Back To Top    #12
    AnnaK's Avatar
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    Thank you very much for that clarification!

    AnnaK
    — AnnaK —

    12,000 gal AGP, Hayward sand filter, Pentair 2-speed pump, timer.
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  13. Back To Top    #13

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    Yes, great explanation waterbear. Got it. I'll keep with the daily TF drop test until the SWG and I come to an understanding. Then I'll move from there.
    IG 18 x 36 Vinyl
    30,000 Gallons
    AutoPilot SWG
    Aquabot T2
    Hayward S244 Sand Filter
    Hayward 1hp RS1000 Pump
    ------------------
    Leisure Bay Spa - Flores - 500 Gallons
    AutoPilot SpaPilot - Not Yet Installed

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