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Thread: First test results with TF100

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    TrevNJPool's Avatar
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    First test results with TF100

    Ok first results
    PH 7.5
    CL 1
    FC 1
    CC 1
    TC 2
    CH 125
    TA 140
    CYA the dot never disappeared.
    I just turned up the chlorinator to 6. I added 2lbs of stabilizer on Thurs but not sure cause it says it may take a week to show up.Also since I have the trichlor tabs going not sure if I have to add more via sock method. If I do put in stabilizer, is it safe to swim while its dissolving?
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    Mod Squad jblizzle's Avatar
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    Re: First test results with TF100

    Your CC are a bit high, likely due to the low FC. With low CYA, the FC may be dropping low in the sun.

    You can use PoolMath to know how much CYA the tablets are adding and keep track. And yes it is safer to swim while the CYA is dissolving.
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    Re: First test results with TF100

    I forgot to mention that it is a fresh complete fill so I am building the numbers up. It says 13oz of Trichlor. I have 9 tablets in the chlorinator. Since my numbers are just getting started, how often should I re do yhese tests. Especially since I cant tell the cya yet
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    Mod Squad jblizzle's Avatar
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    Re: First test results with TF100

    What is 13oz of Trichlor? 9 tablets is like 4.5 pounds of Trichlor. Your pool is big so it is going to take a lot of Trichlor to build the CYA maintain adequate FC.

    How much stabilizer did you add?
    Jason, TFP Moderator
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    TrevNJPool's Avatar
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    Re: First test results with TF100

    2lbs thursday and I'm about to add 5lbs by the suggested sock method.

    - - - Updated - - -

    The chlorinator is also new so I'm not sure where that needs to be. I guess that will be trial and error until I get and maintain the chlorine at 4ppm.
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    Re: First test results with TF100

    Trev, You have a good size pool and it will take a good bit of stabilizer to get your CYA numbers up. Just asking for clarification. Did you read through Pool School?
    Hopefully you understand that Trichlor tablets contain stabilizer and that they will also raise your CYA. Do you know it will take at least a week or more for the CYA to show up on your tests? Be careful you are not adding stabilizer and using "pucks". You don't want to overshoot and have too much CYA. You won't like draining that pool so soon!!
    16,000 gallon Oval Vinyl Liner Pool (new liner 2014)
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    TrevNJPool's Avatar
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    Re: First test results with TF100

    Thats what I'm worried about. Even when 9 pucks totally dissolve pool math says it will raise the cya by 3.7. I just dont know how much stabilizer raises it. Anyone have a clue?
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    Mod Squad jblizzle's Avatar
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    Re: First test results with TF100

    Use the effect of adding chemicals section at the bottom of PoolMath.
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    Re: First test results with TF100

    The can says 1lb per 3000 gal will give an initial cya of 40ppm. If I'm correct (and I might not be) lol 10lbs will give that to me. If I do 5lbs that should give me roughly 20ppm plus what the trichlor gives me. That would be around 25 to 30 ppms. That sound correct? I only added about 2.5 lbs to start off today. In total since thurs thats 4.5 lbs.
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    Re: First test results with TF100

    I'm not sure what you are looking at. Why would you want to use trichlor tabs in the first place? It's much easier and better to control using powdered stabilizer and the sock method. At this point, just use liquid chlorine (bleach). This way you can target the CYA level you want to achieve and you are not guessing. If I were you, I would pull all the pucks out, tell us how much stabilizer you already put in and target your FC to the level you think you have. Wait a week and retest your CYA.

    Hide the trichlor, dichlor, and anything else you bought at the pool store and stop making things so complicated.
    Trust in the TFP method and you'll do fine.
    16,000 gallon Oval Vinyl Liner Pool (new liner 2014)
    Custom built in 1999 to be half in-ground and half out (sloped yard) vermiculite bottom, laser sighted to Florida Room and Deck
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    Mod Squad jblizzle's Avatar
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    Re: First test results with TF100

    Again, use PoolMath.
    Jason, TFP Moderator
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    TrevNJPool's Avatar
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    Re: First test results with TF100

    Here are my newest test results. The chlorine is a little high due to a mix up between me and pool math. that is okay because I have a party on Saturday that will eat up the chlorine due to heavy bather load.
    PH 7.3
    FC 7.5
    CC LESS THAN .5
    TC 8
    CH 150
    TA 125
    CYA ? Accrding to pool math should be 25
    FOr CYA the dot never disappeared. I did put in a total of 6lbs this week 2 on sun/mon and 4 on tues. The dot is getting cloudy but not gone. Hopefully I can get an accurate reading in a couple days. I did have to drain about 5-6 inches out of the pool because of alot of rain that took the water level over the top of the skimmer opening.
    40x18 Lazy L Rectangle
    29500gal IG w/ vinyl liner
    HAYWARD S244T 300lb sand filter
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    Mod Squad jblizzle's Avatar
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    Re: First test results with TF100

    Looks like you are on the right path
    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
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