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Thread: First test with TF-100 December 12, 2013.. Opinions please

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    Mark R's Avatar
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    First test with TF-100 December 12, 2013.. Opinions please

    Pool Water temp was about 75 degrees:

    FC 3.65
    CC 0.25

    TA turned yellow, but on the Basic test it was over 8.2
    CH 800-900

    CYA 150

    Let me know what I did wrong or what I forgot, and if the test seems off. Actually, I'm sure the waters not right.

    Pool water is very clear, doesn't taste salty but can smell chlorine

    Thank you have a great weekend !

    Edit: took the chlorine pucks out of the pool for right now cause the high chlorine numbers. And the pool water was at room temp, the actual water temp is probably 45-50 degrees.

    Also I should lower the ph and drain some water out of the pool and refill it through my water softener ?
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Smykowski's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Couple things.

    1. How did you get 3.65 for FC. You should be multiplying by .2 or .5, though .5 is plenty of precision.

    2. Did you dilute the water prior to the CYA test? Or did you just interpolate?

    3. Explain the TA test. I think you were actually running the pH test in the K-1000 kit.

    Post back and we will help you further.
    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: First test with TF-100 December 12, 2013.. Opinions plea

    What he said ^

    I'm guessing you multiplied by .05 instead of .5, which would mean really high FC, which can cause the TA test to go blue>yellow instead of green> pink. It would also mean CC is also high, which is what you smell. High FC also messes with the dye in the pH test, so it's unreliable. Picture proof: accurate-ph-test-during-shock-levels-with-r-007-t61076.html
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    I'm going to do it again, thanks for the reply's. I read the directions twice and did everything pretty slowly. I'll post results again.
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Hi everyone..

    After using 1 scoop of powder as directed and 79 drops of R-0871 I came up with 39.5 on the FC
    (79x0.5)

    And then then testing for CC it now shows 1.5

    Total Alkalinity never turned red.
    Note: In the presence of high chlorine, initial color maybe blue and shift to yellow. It did shift to yellow and never turned red. I'm I not doing this right ? Because after a huge amount of R-0009, (40 drops) it never went to red.

    Thank you and I'm off to You Tube to watch a video on this
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Mod Squad jblizzle's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    With a FC level that high, I am not sure one scoop of powder is enough, unless was really heaping. You can not use too much powder, but too little can be a problem.

    Do you had reason to believe the FC is really that high?

    As that says, if the FC is high, you stop the TA test when it turns yellow.
    Jason, TFP Moderator
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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    jblizzle,
    To be honest, I have no clue what I'm doing lol. I'm just learning pool chemistry and trying to get this right. I'm reading and learning and now going to watch a Video on this test and everything about the TF-100. All I can do is read the directions and go.

    I want to take over my pool, I have no reason to believe anything is off. I've always had clear sparkling water and never a problem. I have taken the pucks out for now and test everyday.

    Thanks
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Vette's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Any updates on this?
    11,700 gallon 21' round 54" deep all-resin AGP - June 2012
    Waterway 1HP 2-speed pump / 100 sq ft cartridge filter
    Hayward 150,000btu Natural Gas heater
    I use and recommend the TF-100 for testing

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    Administrator Leebo's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    It sounds like you're having a few issues with the test directions.....take a quick look at the "How To" video's on TF-100's YouTube Channel. Should help you out alot.

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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Your FC test may be accurate--you are just taking over your pool from a service. You had pucks in the pool. They are probably trichlor or dichlor which add CYA as well as chlorine. You live in a place with fairly dry summers. We'd expect your CYA to be high; for it to be well over 100 is believable. With a high CYA, your FC would also need to be maintained quite high to prevent algae, and you say you've never had a problem.

    If you used a 10ml sample for the FC test, added a heaping spoon of powder, and then it took 79 drops of the reagent to clear, your FC is 39.5 as you stated. Again, given how you described your pool, this is believable. FC that high will interfere with the pH and TA tests, so I'd recommend not running those for now.

    CYA and CH both need to come down. Draining and refilling is likely your best option with these. You'll likely want to do a few partial drains and refills to get it down.

    The CYA test can be a little tricky. When you do it, choose a sunny time of day, hold the vial at about waist level, and run it with your back to the sun. If it reads over 100, then repeat the test using half pool water and half tap water and double the result.

    I recommend working to get your CYA in range, and then re-check your CH once you have your CYA down.
    Outdoor 14,000 gallon IG plaster pool built in 2000 with spillover spa, 2 hp WhisperFlo pump with MagneTek motor, Sta-Rite cartridge pool filter with 300 ft2 filtration area and 0.33 gpm/ft2 filtration rate, Aquabot Rapids 4WD robotic pool cleaner, Raypak digital gas heater, and Intermatic mechanical timer located in the Dallas-Fort Worth metroplex

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Thank you, exactly what am doing now. No pucks since my since Dec.12 and chlorine is still high.

    And I received a pump today and will drain some water, maybe a third ? Rinse and repeat..

    Happy Holidays !
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Yep. If you're confident that your water table is low, you could drain around half to speed the process a little.
    Outdoor 14,000 gallon IG plaster pool built in 2000 with spillover spa, 2 hp WhisperFlo pump with MagneTek motor, Sta-Rite cartridge pool filter with 300 ft2 filtration area and 0.33 gpm/ft2 filtration rate, Aquabot Rapids 4WD robotic pool cleaner, Raypak digital gas heater, and Intermatic mechanical timer located in the Dallas-Fort Worth metroplex

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Update after refilling half the pool:

    FC. 21
    CC .25
    TA 140

    CH 500
    CYA 100


    Happy New Year
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    pwrstrk's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Looks like you need to drain and refill some more.
    Post back with how things are going.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Tested today after 3/4 draining of the pool over the past 3 weeks

    CH is now 950. Tested the water from my house which runs through a softener and it's less then 50. Out of the faucet outside it's about 550.

    FC is 14
    CC is .5

    CYA is still high 130

    After doing all this, I did the basic test(K-1000) that came with the T-100.
    Chlorine shows high, over 8, orange color
    PH is 8.4

    I've added no chlorine since December 12 but drained about 3/4 of the pool water.

    I will add a pint of acid to lower the PH down to around 7.5

    Is the water here in the desert really this hard to adjust ?? I can't figure out why the chlorine is still so high even after draining as much as I did. That goes with CYA and PH too.
    Thank you
    I'm really getting annoyed..
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Mod Squad jblizzle's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Keep replacing water. You have to get the CH and CYA down.

    The more you drain at the same time, the faster they will drop.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Thank you. I will drain another 7-8K gallons. Good thing I bought a water pump.

    EDIT: 10k will be drained
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    FC - Free Chlorine
    CC - Combined Chlorine

    ^^^ TFP.Com acronyms

    Free Chlorine
    Total Chlorine

    An iphone app list these terms ^^
    Can I assume that total chlorine has the same meaning as the TFP CC

    App is called The Pool monitor
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

  19. Back To Top    #19
    Smykowski's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    No. TC = FC + CC
    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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    Mark R's Avatar
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    Re: First test with TF-100 December 12, 2013.. Opinions plea

    Thank you. Pool is 90% drained
    12k gal Gunite/Hayward filter C5520BH with quad 33 inch filters. 2.5 hp motor. Pool is on south side, so full sun light. Spill over spa.
    Laar's heater LT250-Low NOx Gas Fired for pool/spa 250,000 BTU. Roof mount 6 panel solar system installed east/south. TF-100 test kit. May-September 100+ degrees out side.

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