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Thread: how often should i really keep adding acid

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    Join Date
    May 2014
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    how often should i really keep adding acid

    New!! ya
    Ive read A quite deal of all the great info on this site Thank You! Timer clock split time 4hrs morning and 4 hrs evening, 80% skimmer 20% main plumbed separate. We are a week in after plaster
    morning numbers are
    FC 5
    Tc 5
    PH 7.8-8.0 added 11oz just now
    Ta 76
    Ch 360
    CyA 30
    Temp
    91

    Im using bleach as suggested and realize bleach is ph neutral(how long for it to gas off/??) im battling with the ph I believe because of new plaster(although i no longer see it while brushing 3 times a day)

    The ?, should i get ph down in the morning lets say to 7.4 using MA then and bleach in the evening? (And possibly added bleach midday as im losing 2 FC)
    I see on a new pool we want to add bleach slowly.

    P.s. No bather load until we get everything settled
    23x13'11,000 gal, pebble fina classico, maxflo vs,Hayward swim clear 325sf, 2" plumbing, Owner Builder 7/2014

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    Richard320's Avatar
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    Re: how often should i really keep adding acid

    Sounds like a plan. Eventually, you will hit the point where you'll test the pH and it won't need adjusting that day!
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Butterfly's Avatar
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    Re: how often should i really keep adding acid

    Welcome to the forum

    Just remember not to do anything that could possibly void your warranty.


    Here's a couple links for your perusal: National Plasterers Council start-up card: http://www.npconline.org/index.php?o...=article&id=85

    TFP's new plaster start-up : http://www.troublefreepool.com/conte...w-pool-plaster

    - - - Updated - - -

    The ?, should i get ph down in the morning lets say to 7.4 using MA then and bleach in the evening? (And possibly added bleach midday as im losing 2 FC)
    I see on a new pool we want to add bleach slowly.
    That sounds like a plan
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    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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    msgtdan's Avatar
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    Re: how often should i really keep adding acid

    Also not all bleach is PH neutral, some of the cheap stuff has a little lye in it and will cause PH to rise a little. I know some of the batches of Tandil I've used from Aldi's has caused my PH to go up quicker than normal. Chemgeek has commented on this in other threads. I'd follow your plan and just bring PH back down as needed.
    Dan D
    Used 2003 Aqua Leader 27'x52", 17,800 w/10" hopper, SwimPro SW256T 250# sand filter, Hayward PowerFlo LX pump 1hp impellor, Emerson 1 1/2 hp motor, setup Aug 2012 Summer 2011 used Summer Escapes Ring pool 14' x 42", Intex 1600gph sand filter, HTH 6 way test kitTF-100 w/stirrer, Well water @ FC=0, PH=7.2, TA=290, CH=320

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    Re: how often should i really keep adding acid

    Thank you

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    astronaut888's Avatar
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    Re: how often should i really keep adding acid

    Quote Originally Posted by msgtdan View Post
    Also not all bleach is PH neutral, some of the cheap stuff has a little lye in it and will cause PH to rise a little. I know some of the batches of Tandil I've used from Aldi's has caused my PH to go up quicker than normal. Chemgeek has commented on this in other threads. I'd follow your plan and just bring PH back down as needed.
    Duuuuude!
    don't tell me that.

    I just got the hook up on Tandil at Aldi and am set for the next month with bleach!

    Oh well - will keep an eye on the pH.

    My pool is so dialed in at 7.5 pH that no matter what I seem to do it never changes - it's like a magical pH.
    20K gal, IG vinyl, 1 1/2 HP Hayward Super Pump , 100lb sand, installed 2000 - new liner/filter/pump March 2014
    TF-100 test kit

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    msgtdan's Avatar
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    Re: how often should i really keep adding acid

    Astro,

    It's not by much, I wouldn't have noticed if Chemgeek hadn't commented on it and I watched when I had to add acid using Clorox or Tandil. Every 2-3 weeks with Tandil and 4-5 weeks with Clorox, but my TA is naturally high so PH tends to creep up no matter what I do. About the time I get TA to where PH is stable it's the end of the season and I have to drain down for the winter. Then start all over again in the spring. I do use the spring rains to help manage TA & CH but it's never 100%. I figure I still save money using the Tandil, I have to maintain PH anyway so a few extra ounces of acid isn't hurting me.
    Dan D
    Used 2003 Aqua Leader 27'x52", 17,800 w/10" hopper, SwimPro SW256T 250# sand filter, Hayward PowerFlo LX pump 1hp impellor, Emerson 1 1/2 hp motor, setup Aug 2012 Summer 2011 used Summer Escapes Ring pool 14' x 42", Intex 1600gph sand filter, HTH 6 way test kitTF-100 w/stirrer, Well water @ FC=0, PH=7.2, TA=290, CH=320

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