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Thread: Sparkles. Is it time for OFCL test?

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    driver5's Avatar
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    Sparkles. Is it time for OFCL test?

    I'm asking because I'm still burning thru 10 to 14 ppm in Chlorine everyday. So that tells me I'm losing more than 1 over night.

    At 7am today I added and checked 30 min later. Was around 19ppm. Now at 5pm I'm at 12

    It was mostly sunny. 80 degrees

    What gives?


    FC currently at 12 ppm. Slam levels are to be at 16
    PH 7.4
    CC zero
    CYA 40
    TA 90
    Pool temp 72
    Filter cleaned reg


    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    Re: Sparkles. Is it time for OFCL test?

    It's important to do the overnight test to eliminate any fc lost to sunlight. If you follow the Slam process as described in pool school, you will eliminate anything that is consuming excess fc.

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    Re: Sparkles. Is it time for OFCL test?

    Daytime FC loss is not as important.....seems to vary a bit more. Do the OCLT.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    pwrstrk's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Wow pool looks a lot better. Did you replace any water and what did you find out about the copper ?
    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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    Re: Sparkles. Is it time for OFCL test?

    At 8pm. FC ppm was at 10. Added 122 Oz of 8.25 bleach(1 jug) and Tested after 30 miutes and it read 23 ppm. I believe I saw in pool math that one jug would raise it about 6ppm. This was a big jump.

    I'm assuming this won't skew my OFCL test either way.?

    Maybe this Walmart bleach is stronger than. 8.25?

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Quote Originally Posted by pwrstrk View Post
    Wow pool looks a lot better. Did you replace any water and what did you find out about the copper ?
    Hi there. I haven't done anything other than stick to trouble free pools plan.
    I didn't add any water. Just pouring in the bleach.

    I'm doing a OCLT. Just started.

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    pwrstrk's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Quote Originally Posted by driver5 View Post
    At 8pm. FC ppm was at 10. Added 122 Oz of 8.25 bleach(1 jug) and Tested after 30 miutes and it read 23 ppm. I believe I saw in pool math that one jug would raise it about 6ppm. This was a big jump.

    I'm assuming this won't skew my OFCL test either way.?

    Maybe this Walmart bleach is stronger than. 8.25?

    Sent from my SAMSUNG-SM-N900A using Tapatalk
    Yep I just looked at pool math and 1 jug of 8.25% should have raised FC by 6. Do you think your FC level could have been higher than 10 ?
    It shouldn't affect your OCLT.
    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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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Quote Originally Posted by JamesW View Post
    It's important to do the overnight test to eliminate any fc lost to sunlight. If you follow the Slam process as described in pool school, you will eliminate anything that is consuming excess fc.
    Hello. I've been following the defined guide to the T. I re read pool school everyday. But I'm sure I'm making mistakes.

    From 8 am till 5pm I've lost 9ppm . I was curious bc if the pools clear and zero cc, I was asking to determine if losing this much is typical. Because if it is. It gonna be expensive.

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Quote Originally Posted by pwrstrk View Post
    Yep I just looked at pool math and 1 jug of 8.25% should have raised FC by 6. Do you think your FC level could have been higher than 10 ?
    It shouldn't affect your OCLT.
    It is possible. I added dropwise slowly. I also use the speedstir. I'm gonna test again.

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    pwrstrk's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Just a little side note. You can keep everything under the same thread you started, then everybody can see the history of what's going on. It makes it easier to follow. One of the mods can put this new thread under your original thread.
    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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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Man. I'm at a loss. 10 Minutes ago I get 23ppm. Now it reads 21


    Question. Can I or should I use the speedstir for the FC test?

    I used it and it's all over the place. 23 then 21.
    I did it manually and I get 22ppm. Then tested again and got 24.

    Wth

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    Re: Sparkles. Is it time for OFCL test?

    Your loss per day will be much lower once you finish the slam process. Right now, you're probably oxidizing something in the water. Your fc/cya percent is also high, which will also contribute to high daytime fc loss.

    When doing the test, it's important to make sure that you do it the same way each time to get good precision. Filling to exactly where the meniscus sits on the 10 ml line is important. Also, holding the bottle vertically to get the same size drops makes a big difference.

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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    Quote Originally Posted by pwrstrk View Post
    Just a little side note. You can keep everything under the same thread you started, then everybody can see the history of what's going on. It makes it easier to follow. One of the mods can put this new thread under your original thread.
    Thanks for the advice.

    Mods, can you move this?

    Thanks.
    Scott

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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    driver5's Avatar
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    Re: Sparkles. Is it time for OFCL test?

    The last two speedstir tests got were 20. Sticking with that.

    Have a good night friends.

    24' Above Ground Vinyl.
    Cartridge Filter ( bullet style )
    Hayward 1.5 pump
    13,500 Gallons
    Taylor 2006c

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