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Thread: FC registers 0

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    FC registers 0

    Hello!

    I found this site after deciding that we are spending too much on chemicals from the pool store. I'm excited to take care of our own pool. I just ordered a TFTestkits TF-100, but it won't be here for a few weeks.

    About 3 weeks ago, we had been on vacation for a week, so we took a sample to the pool store, and our pool pH and alkalinity were out of whack. We added what they sold us, but our FC stayed at nil, even after shocking several times. However, our pool water looks beautiful at the moment, clear and clean.

    Meanwhile, we've been using test strips. I know they're not as accurate, but--
    FC 0
    pH 6.8 (very low)
    alkalinity 125 (OK range)


    It's been hot here every day (upper 80s) with a thunderstorm most afternoons, so the pool has water evaporating as well as rain water added. I used the PoolMath and it calculates that I need to add 2.4 jugs of chlorine and 4 boxes of borax.
    I'm worried about waiting on a test kit and not working on getting the FC level up.

    Would you recommend I add bleach (gallon/ day) while I wait on the test kit? Hold off on Borax or go ahead with that as well? Should I utilize the pool store until I get the test kit?

    Thanks for any help or recommendations!
    27K gallons
    IG, Vinyl
    Sand filter-Haywood S200
    City water

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    Mod Squad pooldv's Avatar
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    Re: FC registers 0

    Welcome to TFP!

    Do you know if there is any CYA/stabilizer in the pool?

    Yes, add chlorine to at least 3 ppm daily. And yes, raise PH to 7.2 to 7.4.

    Maybe if you use strips and pool store test you might get close.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: FC registers 0

    I just ordered a TFTestkits TF-100, but it won't be here for a few weeks.
    Wow! who did you order that from? Did they give you a delivery date?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad pooldv's Avatar
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    Re: FC registers 0

    Hey, I missed that. Cancel that order and order one from TFTestkits.net and it will ship tomorrow.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: FC registers 0

    I don't think there's any CYA at this point. When we went to the dealer on 7/19, it was at 99, but there's no way of knowing now until I get the test kit (ordered from TFTestkits and will probably ship today).

    We added 1 gallon of chlorine last night, was in OK range after a few hours, and then this morning registers none.

    I'm heading to Walmart today to buy more bleach and will add as needed. Should I also go ahead and buy CYA and borax?

    Thanks!
    27K gallons
    IG, Vinyl
    Sand filter-Haywood S200
    City water

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    cj3737's Avatar
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    Re: FC registers 0

    You can buy some CYA but keep the receipt... If its at 99 as the dealer suggested, you wont need to add any... We will be able to help more once the TF100 arrives.. until then, not much you can do other than add bleach and brush to keep whatever is eating you chlorine off the walls...
    Inherited 24' Muskin Above ground
    13500 gal
    Hayward S180T92S Sand filter
    Taylor K-2006C Speedstir
    TFPC for Beginners | Pool Math | Pool School | CYA Chart | SLAM | Test Kits | ABC's

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    Re: FC registers 0

    100 is the limit of the CYA test. It is possible that your CYA is higher than 100. If your first result is 100, you should dilute the pool water with 50% tap water and double the result. You don't need any more CYA at this point.

    Go ahead and pick up bleach, but hold off on purchasing anything else until we get your first results.
    Karen
    33K IG w spa plaster, Pentair 1HP Whisperflo, DE Filter, SWG CircuPool RJ-60, Dolphin Triton Plus, Raypak Dig 336K BTU, TF-100.
    Pool Math Chlorine / CYA Chart SLAM - Shock Level And Maintain
    2017 replaster/retile

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    txnole's Avatar
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    Re: FC registers 0

    Question - how were you normally adding chlorine before you started here and add bleach? Chlorine pucks? Don't add anything other than bleach until you get your test results.
    COMPLETED BUILD THREAD - 15'x29' rectangular offset shotcrete pool; 14,100 gal; 5'x7' raised spa with 400k btu fire feature; 7' spillover; 25' leuder stone raised bond wall w/waterfall; Pentair SWG; Pentair VS (pool); Pentair 3/4hp feature pump; 1hp spa blower; Pentair Cartridge filter; Pentair “Easy Touch 8” wireless; Dolphin Oasis Z5 robot; Solar Hydronics iSwim solar panels; Mansard Screen Enclosure; walnut travertine deck; 1 very happy kiddo.

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    Re: FC registers 0

    Thanks so much! I'm worried about my kids and their friends swimming in the pool. Is it really not safe right now as I've read elsewhere on this site?

    I'm going to Walmart right now and will add bleach today. Can I add more than a gallon/ day to get the FC number up?
    27K gallons
    IG, Vinyl
    Sand filter-Haywood S200
    City water

  10. Back To Top    #10

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    Re: FC registers 0

    Yes, we were using sticks and shock from the pool store.
    27K gallons
    IG, Vinyl
    Sand filter-Haywood S200
    City water

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    cj3737's Avatar
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    Re: FC registers 0

    Technically you could add more than a gallon right now but its a blind addition and we don't like doing that. A gallon a day will keep you in the 3 FC range for now but since we don't know what your levels are at, we cant make any recommendations on how to proceed.

    No more sticks and shock for your pool.. just bleach for now until you get everything under control.

    In the mean time, read thru all the links in my sig block and get familiar with your targets and the ABC's. The more knowledge you acquire, the easier pool maintenance will be
    Inherited 24' Muskin Above ground
    13500 gal
    Hayward S180T92S Sand filter
    Taylor K-2006C Speedstir
    TFPC for Beginners | Pool Math | Pool School | CYA Chart | SLAM | Test Kits | ABC's

  12. Back To Top    #12

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    Re: FC registers 0

    Just got back from Walmart and put in a gallon of bleach. Will keep up with the gallon/day until I get the test kit. I've done a ton of reading through this site in the last few days. You're all correct, I can't do much until I get the test kit because I don't have all the info I need.

    Thank you all for all your support.
    27K gallons
    IG, Vinyl
    Sand filter-Haywood S200
    City water

  13. Back To Top    #13
    cj3737's Avatar
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    Re: FC registers 0

    Inherited 24' Muskin Above ground
    13500 gal
    Hayward S180T92S Sand filter
    Taylor K-2006C Speedstir
    TFPC for Beginners | Pool Math | Pool School | CYA Chart | SLAM | Test Kits | ABC's

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    JesseSchmidt's Avatar
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    Fairfield Twp, OH
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    Re: FC registers 0

    Just FYI, the water is safe to swim in if it's clear so you can see the bottom of the pool, your FC level is between the minimum and shock level for you CYA (Chlorine/CYA Chart) and your pH is between 7.2 and 7.8. As it stands right now, I wouldn't swim in it until you get the pH straightened out and find out what your CYA is so you can get your FC on target.
    26k Gal IG vinyl, Hayward Super 1HP, Hayward Pro Series S244T Sand Filter, TFTestkits TF-100 w/ Speedstir
    Links: TFPC for Beginners / ABCs of Pool Water Chemistry / GETTING STARTED / PoolMath / SLAM / TFTestkits / Chlorine/CYA Chart

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