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Thread: Is a better PH test needed?

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    Is a better PH test needed?

    Using the one that came with TF100.
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Is a better PH test needed?

    I just researched this. Apparently this kit is the best without spending $100s of dollars. You're probably having a hard time matching the colors, me too!

    What you need to do is use more or less drops, or more or less water. I played with this today and found less drops (4) would make the colors match up better.
    Michigan - 24'x54" AG, approx 15,000g, 2 center drains, Cartridge filter, Aqua Pro 2hp, 2 speed pump 3.5a@1725w / 10.5a@3450w, AquaCal TropiCal T90 heat pump, Hayward Salt & Swim SWG, Poolskim, Aquabot Rover Jr.

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    pinguy's Avatar
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    Re: Is a better PH test needed?

    A titration test would be better, but anything more accurate is very expensive.

    Fortunately with pH, and pools in general, close is close enough.

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    Re: Is a better PH test needed?

    A better pH test is digital and begins around $100 and needs continual calibration. The pH test in the TF-100 combines practicality with decent precision and a good price.

    If you tested for as a profession, a digital tester starts to make sense.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Is a better PH test needed?

    There is a cheap better way. You can buy the acid demand regent ( which costs about three dollars) and add a drop to the ph test of the tft100. The drop will lower the PH and usually the color is much easier to read. I usually add a drop or two until the color turns orange and I can read it as 7.5. I find that a PH of 7.5 is much easier to read. Based on the number of drops that it takes to lower it to 7.5, I can use Pool Math to reverse engineer what my initial PH was. I don't think TFT sells that acid demand regent but they should.
    1200 Sq Ft 41,000 Gal. Gunite, JANDY SVRS VS pump, JANDY JXI 400,000 BTU, Polaris 280 w/ 3/4 BP, Rockwall and Grotto (w/6 jets and blower), 2 JANDY Lam Jets, 2 LED Bubblers, 5 Ledlights, AQUALINK P16 RS, 90% Quartz, SWF 185 GMP BP, SWF 125 BP, Levelor K1100 Autofill, AP Digital SWG, 2 skim and 5 returns, and mostly 3 inch piping

  6. Back To Top    #6

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    Re: Is a better PH test needed?

    Thanks all
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Is a better PH test needed?

    I don't think TFT sells that acid demand regent but they should.
    An absolute founding tenant of TFP is to make pool management simple and keep it simple. Over the years we have learned that the pH test, while rudimentary, works. That's it....it works.

    If it ain't broke......
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Stump's Avatar
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    Re: Is a better PH test needed?

    What duraleigh said
    24' Reprieve RD/AG/13K gal Vinyl TFP method
    Waterway Clearwater 175 sqft Cartridge
    Hayward Power-Flo Matrix 1HP Pump 2-Speed
    TF-100 Test Kit SpeedStir Borate Insta Test
    Spreading TFP to All

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    Re: Is a better PH test needed?

    Speaking of if it ain't broke.

    Is it really possible my pH can just stay at 7.6 for weeks even with lots of playtime?
    it has.
    TA 160
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

  10. Back To Top    #10

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    Re: Is a better PH test needed?

    My Ph stays stable when my TA is 110. I may have to tweak it twice throughout the season.
    17,500 gal. ABG Doughboy Pool
    1/2 HP Pump/150 sq.ft. Cartridge Filter
    TF100 Test Kit And Speedstir

  11. Back To Top    #11

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    Re: Is a better PH test needed?

    Go out into natural sunlight to match the colors. If you try to match them up under fluorescents it distorts the colors.
    20K gallon vinyl inground pool, Hayward Pro Series sand filter, 1 HP pump, Taylor K-2006

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    Re: Is a better PH test needed?

    I always do it outside...thanks all. Guess it is possible!
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

  13. Back To Top    #13
    Mod Squad pooldv's Avatar
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    Re: Is a better PH test needed?

    Sure, lots of folks have stable PH. Some say they haven't added acid in years. I am not one of those.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  14. Back To Top    #14

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    Re: Is a better PH test needed?

    It's only because I bought six gallons of MA. Maybe I should buy a plow truck and we can avoid winter.
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

  15. Back To Top    #15
    Mod Squad pooldv's Avatar
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    Re: Is a better PH test needed?

    Now, that is a solid plan!
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Susiejax's Avatar
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    Re: Is a better PH test needed?

    I concur..... Great idea!
    22,400 gal; in-ground gunite rectangle, vinyl liner; 3.5'-8' depth; Chlorine; auto cover; Hayward Pump and Sand Filter; Hayward Electric Heatpro; diving board; 3 sidewall fountains; open mid May thru mid October; built 2011; Taylor K-2006C FAS-DPD Test Kit

  17. Back To Top    #17

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    Re: Is a better PH test needed?

    These posts answered my questions about the K-1000 pH test and my relatively consistent pH readings over weeks of time. Thanks to all.
    SIZE: 20 ft x 40 ft rectangle; 42in- 8ft; 35K gals IG; Install '75; new vinyl liner '97 (liner now bleached white); 1 bottom drain & 2 skimmers (added 1997); MOTOR: 1 HP 1-speed (replaced 1999); FILTER: Hayward Sand Model S-244T (new 2003); VALVE: Hayward Model SP-714-T1 Vari-Flow (new 2012); PUMP: Pentair Challenger Hi-Head ('75); SANITIZER: liquid chlorine bleach - converted to Trouble Free Pool 2013; Dolphin 2000 Robot cleaner (2003)

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