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Thread: Am I done shocking? If yes, now what?

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    plucky71's Avatar
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    Am I done shocking? If yes, now what?

    I'm wondering if I am done shocking. Here are my current test results as of this a.m.

    FC 22.5
    CC .5
    TC 23
    PH 7.3
    TA 70
    CH 100

    Last nights FC was 23.5

    The pool does look clear to me. However I have only seen it as black/green in the past.

    My test results from Monday (3 days ago) were:

    fc 0
    ph 7.2
    ta 50
    ch 130
    cya 50

    So with a cya of 50 I have been targeting 20. I always seem to hit a little high so I'm wondering if my pool size calc. of 12,000 is a little high.
    Anyway, if I am done, now what? I will be using liquid bleach for my sanitizer. Here are the pool school recommended levels:

    Fiberglass with Bleach

    FC 3-7
    pH 7.5-7.8
    TA 70-90+
    CH 220-320
    CYA 30-50

    Should I raise my pH and CH now? Is my TA o.k. at 70? I will retest my CYA when the FC is down to normal.

    Thank you all so much for your help. As a first time pool owner this forum has been such a blessing to me.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    Mod Squad zea3's Avatar
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    Re: Am I done shocking? If yes, now what?

    If you did not add bleach after last nights test results then yes, I would say you were finished shocking. I think the pH is o.k., but check it again when the FC is at normal levels. TA is o.k., CYA won't change due to FC levels, so CYA of 50 is the high end of o.k.
    TFP Moderator
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    Mod Squad Bama Rambler's Avatar
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    Re: Am I done shocking? If yes, now what?

    It appears that, like zea3 said, you're technically done, but (isn't there always a but?) I'd hold shock level again today and perform the overnight test again tonight just to make sure. Being sure to test after dark tonight and before suns up in the morning. Post the numbers as well as the times you tested.
    Dave J. TFP Moderator
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    orthofish's Avatar
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    Re: Am I done shocking? If yes, now what?

    I would get the CH up. I let mine get down to 160-200 and I now have a few cobalt stains to deal with. I have bumped mine up to 275.
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    Thank you. I will raise my CH as suggested. I will post new numbers tomorrow. I have maintained shock level.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    Here are the latest numbers. I tested last night at 10 pm and this morning at 6 am.

    FC last night 14
    FC this am 14
    CC this am 1.0
    TC 15

    So, what do you think. Should I stop the shock process?

    Thank you.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    frustratedpoolmom's Avatar
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    Re: Am I done shocking? If yes, now what?

    No, you need your CC to be .5 or less before you do.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    Is it ok to raise my CH while I am in the process of shocking?
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    Mod Squad Bama Rambler's Avatar
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    Re: Am I done shocking? If yes, now what?

    Yes, it's ok to add calcium while shocking. Mix it in a 5 gal bucket of pool water and pour it slowly in near the return. It'll get pretty warm when mixing. Use a plastic or wooden stick to stir it with.

    Since you lost no FC during the night you're real close to being done and this part requires the most POP. Hang in there and do the overnight test again tonight and post the results.
    Dave J. TFP Moderator
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    frustratedpoolmom's Avatar
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    Re: Am I done shocking? If yes, now what?

    I should have mentioned make sure the pool is not covered - sunlight helps destroy CCs so you could be done today or tomorrow but like Bama said, have some of that POP and try not to let it get to u.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    Thank you for the help. I have been keeping a solar cover on it so I will take it off. I'll update tomorrow.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    Here are the latest numbers:

    FC 12.5 last night 10 pm
    FC 12 this am 0630
    CC .5

    I have not raised CH yet.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    Re: Am I done shocking? If yes, now what?

    Quote Originally Posted by plucky71
    Here are the latest numbers:

    FC 12.5 last night 10 pm
    FC 12 this am 0630
    CC .5

    I have not raised CH yet.
    Sounds like you are done shocking

    How does the water look?
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    It looks clear.
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    Melt In The Sun's Avatar
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    Re: Am I done shocking? If yes, now what?

    Assuming that plucky's pool is the white one in their avatar, is cobalt staining an issue with white fiberglass pools? I thought the cobalt staining was a result of the cobalt-containing dyes used to color fiberglass pools blue.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
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    Butterfly's Avatar
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    Re: Am I done shocking? If yes, now what?

    Quote Originally Posted by plucky71
    It looks clear.
    If you have not already done so, I suggest you raise your CH to recommended level.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Butterfly's Avatar
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    Re: Am I done shocking? If yes, now what?

    Quote Originally Posted by Melt In The Sun
    Assuming that plucky's pool is the white one in their avatar, is cobalt staining an issue with white fiberglass pools? I thought the cobalt staining was a result of the cobalt-containing dyes used to color fiberglass pools blue.
    From what I have read over the years, (especially waterbear's posts as he has a white fiberglass pool), cobalt spotting ( and iron stains) occur more easily with lower CH levels.

    I am pretty sure that MBAR (Marie, the stain nazi )also has a white fiberglass pool and also maintains a higher CH level for the same reason.
    She is the author of the stain removal AA treatment in Pool School.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    orthofish's Avatar
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    Re: Am I done shocking? If yes, now what?

    Nothing about my pool is white and I have a few of them CH was too low. I let it get down to 160-200.
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

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    plucky71's Avatar
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    Re: Am I done shocking? If yes, now what?

    I am planning on raising my CH. Yes my pool is white FG. Is there any reason that I should not raise my CH? Are there some disadvantages?
    Outdoor fiberglass inground 15,000 gallons, Clean & Clear Plus 420ft. sq. filter, 1 h.p. WhisperFlo pump, New water cycler automatic chlorinater(not using), 1996 pool, TF-100 test kit.

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    frustratedpoolmom's Avatar
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    Re: Am I done shocking? If yes, now what?

    No, go ahead and get your CH to 250 it will be fine.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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