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Thread: Newbie! Just received my TF-100 test kit and took it out for a spin...

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    Newbie! Just received my TF-100 test kit and took it out for a spin...

    All,

    First used the generic blue kit, and both the chlorine and ph looked fine.

    Then I used the DETAIL kit about 20 minutes ago!

    Results:

    FC : 11
    CC : 0
    CH : 475 ppm
    TA : 100
    CYA : eye-balling the black dot, I'm guessing about 110. I didn't quite reach the first graduation of 100 on the tube...

    Any thoughts on what I should do here, outside of stop using the chlorine tabs and buy some liquid bleach?
    Rich Brown
    16K gal, IG Pebble Fina, Jandy Variable 1.5 HP Stealth, Jandy 460 cartridge filter
    Jandy Zodiac (using chlorine tabs), Hayward TigerShark QC robot
    Date Installed: 09/2012

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    Smykowski's Avatar
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    Re: Newbie! Just received my TF-100 test kit and took it out for a spin...

    What was the pH?

    Probably want to drain to get the CYA down. 50 is ideal. You can do it higher, but 100 is going to be very difficult.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    Richard320's Avatar
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    Re: Newbie! Just received my TF-100 test kit and took it out for a spin...

    Welcome!

    You're sort of in the bind I was in when i took over my pool care. High CYA and water restrictions. Two things to do now: 1) Repeat the CYA test using the dilution instructions in http://www.troublefreepool.com/threa...Kit-Directions post #8, step 9. 2) Get onto your water company website and see if you're having tiered water rates, mandatory reductions, or anything that says what to do about pool refills. Sometimes they'll let you change the water every few years and pay the lower tier rates. So do look.

    If you can get way with a partial drain and refill, I'd say do it now while you still can. You can maintain a pool with high CYA; I've done it. I also know it's not something I want to do again, nor do I recommend it to anyone. If you can get away with dumping half, even a quarter of the pool water, do it. It's so much easier to maintain with the CYA at a reasonable level.

    If a green lawn isn't a criminal offense yet, you can also use a submersible pump (or the hose bib if you have one on the plumbing) to use pool water on the lawn, then make it up with what you would have used on the lawn. That will sloooooowly lower CYA.

    The ugly alternative is to maintain the right FC level for your super-high CYA, which could put it way up there into double digits. The CYA scale isn't equidistant graduations. What you guess is 110 could easily be 150 or 200. Hence the recommendation to repeat the test and get a number. If CYA is so high that you need to maintain double-digit FC, your pH test will always be somewhat suspect. The pH test is only 100% accurate if FC is below 10. The good news is that even if FC is at 15 or 20 - whatever Pool Math calculates - you won't be bleaching out swimsuits.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
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    Re: Newbie! Just received my TF-100 test kit and took it out for a spin...

    Thanks for the replies! Yeah, I'll have to see what I can do. I wish I had the means to divert a pool water into a storage mechanism for future watering... but I've got nothing. We're supposed to have a storm the next couple of days, so I can use *that* to mask pumping some water out of the pool (if everything is wet, then at least I won't be flagged as a "water waster". )

    Refill is another story. I'll have to look into it.
    Rich Brown
    16K gal, IG Pebble Fina, Jandy Variable 1.5 HP Stealth, Jandy 460 cartridge filter
    Jandy Zodiac (using chlorine tabs), Hayward TigerShark QC robot
    Date Installed: 09/2012

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    Re: Newbie! Just received my TF-100 test kit and took it out for a spin...

    One of the things we teach is precision....measuring, applying, testing, etc. "Looked fine" for your Chlorine and pH is OK but not nearly as (an example = pH 7.4 ; Chlorine 4)

    Generally, you need to reduce most everything. You can only do so by drain and refill........no other effective way.

    If water is tight, I'd make arrangements to capture that storm water and drain off a little pool water once you are sure storm will arrive.

    Pool School is the beginning of everything we teach.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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