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Thread: Test results Using TF100

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    Jonette2's Avatar
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    Test results Using TF100

    Hi,

    I just did my testing. Here are my values. Help is appreciated.

    CH=225
    FC=.5
    CC=.5
    TC=1
    TA=70
    CYA=0
    Borate=15
    Salt=3600
    PH=7.5

    The PH was way high, we have just got it to acceptable level, now whats next? I think all the chlorine levels are low. Remember, we are running the salt system .I also see we have no CYA. Im sure that's a problem. when I did the test I could see the dot at the bottom even with the vial filled to the top with the water. I don't know what to do next.

    Thanks Everyone.

    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Patrick_B's Avatar
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    Re: Test results Using TF100

    If it were me, I would add enough bleach to get the FC up to 3-5 immediately, and get the Cya started.

    A SWG can't keep up with Sunlight with no Cya in the pool. Shoot for Cya 60 PPM to start.
    TFP Moderator
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    Richard320's Avatar
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    Re: Test results Using TF100

    What he said, in exactly that order.

    The SWG won't be able to keep up with the demand unless you put some stabilizer in there. And it for sure won't be able to keep up with the demand if you get algae, so add some bleach, now!
    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.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Test results Using TF100

    Thanks, adding bleach.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Mod Squad jblizzle's Avatar
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    Re: Test results Using TF100

    Did you actually previously add borates?
    Jason, TFP Moderator
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    Re: Test results Using TF100

    No. Never added BORATES.

    - - - Updated - - -

    I'm only measuring them because I think I'm supposed to.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Mod Squad jblizzle's Avatar
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    Re: Test results Using TF100

    So you bought separate strips to test for borates? No point if you never added them.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Jonette2's Avatar
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    Re: Test results Using TF100

    I bought the TF100 test kit. I may have bought the borates too. If it doesn't come with the kit. I may have thought I needed it. Anyway, I have the test for it, so yes I have been testing for it.

    See, I don't know what I'm doing. I'm sure you figured that out.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Re: Test results Using TF100

    Once you get your CYA up and you've got your SWG dialed in to maintain your FC, you could add borates. It's completely optional. It adds some resistance to algae and improves the feel and sparkle of the water. It also makes the pH take longer to raise due to the SWG.

    A downside is if you have pets, make sure they don't use the pool as a regular drinking water source as it has been shown to cause illness in animals at high dosages.
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Mod Squad jblizzle's Avatar
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    Re: Test results Using TF100

    You are doing fine, you got the year kit so that was step 1 to taking control. You do need to add CYA.

    How much of Pool School have you read? I know it can be pretty overwhelming.
    Jason, TFP Moderator
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    Jonette2's Avatar
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    Re: Test results Using TF100

    Here are my test results today. Ugh

    CH=200
    FC=.5
    CC=.5
    TC=1
    TA=70
    CYA=0
    Salt=3600
    PH=7.5

    We added 2 gallons of bleach, this is what the pool calculator told me to add. What to do next? I'm lost. I don't see an increase in chlorine at all.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Re: Test results Using TF100

    Quote Originally Posted by Jonette2 View Post
    Here are my test results today. Ugh

    CH=200
    FC=.5
    CC=.5
    TC=1
    TA=70
    CYA=0
    Salt=3600
    PH=7.5

    We added 2 gallons of bleach, this is what the pool calculator told me to add. What to do next? I'm lost. I don't see an increase in chlorine at all.
    Two gallons of bleach in a 30k pool will only get you to 5 FC. If there's any algae, it will start consuming the bleach as soon as it hits the water. And with the super low CYA, the sun will zap it really fast. What does the water look like? Clear? Hazy? Cloudy? Green? Black?

    Have you added any CYA yet? It takes a while to dissolve, so you can put it in now. Target 30 to start. That's about 3 pounds. Put it in a sock or nylon and tie it shut, then set it in the skimmer or hang it in front of a return. And keep adding bleach. If all your CYA disappeared over the winter, then it broke down into ammonia, which will take a whole lot of bleach to overcome. But don't get sidetracked by that, just yet.

    What does the water look like?
    Have you added any CYA yet?
    Was there CYA in the water last year?
    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.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Test results Using TF100

    Think it would take 7.5 lbs of CYA to get to 30 ppm in that large of a pool. MORE SOCKS! Mine only hold 3 lbs stuffed full...
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
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    Jonette2's Avatar
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    Re: Test results Using TF100

    I never put CYA in. I never heard of it. I know I'm testing for it,I somehow thought chlorine makes CYA. DANG! On my way back to Pool School. BRB!
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Jonette2's Avatar
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    Re: Test results Using TF100

    OKay, so I'm back from Pool School and I figured out why I didn't think about the CYA, because CYA is in SHOCK and I didnt think I needed to SHOCK the pool. So now I see I am wrong, I took it too literal. Some CYA is required. Is it also called Stabilizer? My husband told me earlier that we have some.

    - - - Updated - - -

    The water is cloudy.Real cloudy.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Re: Test results Using TF100

    Cya can ( and should ) be purchased separately from "shock".

    You will usually find it labeled as stabilizer.

    Do not just dump powdered cya in the pool. Put it in a sock or stocking in front of the returns - squeeze it when you walk by...
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
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    Jonette2's Avatar
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    Re: Test results Using TF100

    How much CYA do we add?

    - - - Updated - - -

    I need to go from 0 to 70 on this 35000 gallon pool.
    IG Gunite pool. 30,000 gallons. Hayward type sand filter. Circupool SI 45 salt system.

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    Re: Test results Using TF100

    15 lbs will get you to 60 if you're truly at 0. I would add that much, test in a week and see where you're at.

    - - - Updated - - -

    On second thought maybe you should play it safe and only add 13 lbs. That way if you're already at 20 or so you won't overshoot.
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Re: Test results Using TF100

    The pool math link at the top of the form has a form that does the math for yo. Shoot for halfway - test again in a week ( it takes that long to register on the test), then adjust accordingly. You do not want to overshoot. If you are off on your pool volume or your base CYA it will mean drain and fill.


    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

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    Re: Test results Using TF100

    Jonette, I don't know if you have a Winn-Dixe around where you are, but the one close to me had 3 pound jugs of granular CYA for $7.99, which is half off, and about 30% cheaper than Lowes, no idea about a pool store's cost though.
    14,500 Gallon kidney shaped in-ground vinyl, Pentair Clean & Clear Plus - 420, Circupool SI40+, 150 fpm - 1HP, Polaris Vac-Sweep 280, TF-100 Test Kit, Hydro Spa Lexxus 225 gallon spa.

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