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Thread: Is this normal bleach consumption?

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    Is this normal bleach consumption?

    I've been BBBing it for a few weeks now (very happily!). Trying to keep my FC at 4 and I'm finding I'm dropping to 1.5 every evening. Then putting in 60oz. to bring me back up for the next day. I know your not supposed to drop below 2. How do I get to that point? Should I bump up to a higher level than 4 in hopes to not drop past 2?

    **Water is looks clear, CYA is a little low but hopefully on it's way up. Maybe it will get more stabilized once the "stabilizer" is in there full strength?
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    Charlie_R's Avatar
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    Re: Is this normal bleach consumption?



    You can bump it up a little higher.

    I assume you have added the CYA, and it is already dissolved. Treat your pool as if it has already registered in your testing.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Is this normal bleach consumption?

    What is you current stabilzer level? When did you put it in? What target were you shooting for when you put in the dose?
    Dave S.
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    pwrstrk's Avatar
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    Re: Is this normal bleach consumption?

    CYA level of 30. FC level of 2-6

    CYA level of 40. FC level of 3-7

    When you dose your FC shoot for the higher end so when you lose FC during the day you won't drop below min.


    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: Is this normal bleach consumption?

    Ok, I didn't do a full test so I don't know them, but so far PH and TA have been in the normal range.

    I have new water this year. The PS only gave me a 1.75lb container of granular stabilizer. I added that a few weeks ago. I've also used 2 frog bac pacs (was trying to use them up and needed my cya up anyway). Then about a week ago I added 2lbs of granular stabilizer. After 72 hours, I tested and could still see the dot with a full tube Yesterday, I added another 1lb of stabilizer and have not retested yet. So all in all, I have added 4.75lbs of stabilizer, plus whatever the bac pacs added. Some of it may not be dissolved yet?

    **I added to the skimmer, per the directions on the bottles. Have no turned off pump and have not backwashed.

    ***We have had a ******** of rain over the last several weeks. So much so that the skimmer was overflowing for quite awhile. So I think there's been some major dilution. I don't want to add anymore stabilizer until I get a good reading after about a week. I don't want to go too high.
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    Mod Squad Bama Rambler's Avatar
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    Re: Is this normal bleach consumption?

    It looks like you have added about 50 ppm CYA, but if you account for overflow it will probably be closer to 40 ppm.
    You're only losing about 2.5 ppm FC per day, so that's not too bad. I'd probably bump the FC up to about 6 or 7 ppm each day and see what that does for you.

    You may also want to bump the CYA up to about 50 or so once you get a good read on it.
    Dave J. TFP Moderator
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    Re: Is this normal bleach consumption?

    I did a full(ish) set of tests today

    FC 2
    PH 7.4
    TA 80
    CYA 40! (maybe between 30-40, I was going fast and am a little out of practice reading it).

    I need to play with the Pool Calc. a bit and see where I'm at.
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    Mod Squad jblizzle's Avatar
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    Re: Is this normal bleach consumption?

    All those results point to is a need for more FC in the water at all times.
    Jason, TFP Moderator
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    Re: Is this normal bleach consumption?

    So are you saying my results are good, or bad? I know I need more FC. I bump it up every night. And am in the process of figuring out where to bump it to, to keep it above 2/3 at it's low point.
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    Mod Squad jblizzle's Avatar
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    Re: Is this normal bleach consumption?

    pH and TA are fine.

    How high are you bumping the FC at night? At this point it should never get below 3ppm. So, raising to about 6ppm "should" be enough. May want to go a little higher to be sure.

    If you are losing more than 3ppm each day, you may consider raising the CYA up a little more.
    Jason, TFP Moderator
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    pwrstrk's Avatar
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    Re: Is this normal bleach consumption?

    I think he's saying your at the bare min FC level.


    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: Is this normal bleach consumption?

    I was adding 60oz, so bumping up to 4. So I was losing 2-2.5ppm per day. I'll try bumping to 6. Thank you! Oh and the last dose of stabilizer was only a couple days ago, so it may end up higher. I'll test again after it's been a weak.
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    Smykowski's Avatar
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    Re: Is this normal bleach consumption?

    kmgt, this is not directed only at you, this is for everyone, but your thread makes it a good place to get up on my soapbox....

    There's a weird reluctance on the part of new forum members to shy away from "high" FC levels. I don't know if it's leftover pool store info that hasn't been brain dumped yet, or if it's a desire to be in the middle of a published range, but the FC minimum is exactly that: a MINIMUM! A hard deck. Don't let it get below that. Ever.

    We all know that even in a clean pool, FC will be lost during the day to sunlight. Every pool is different, so we can't predict what your FC loss will be. You need to learn your pool, and do whatever you have to do to keep it above the minimum. Dose your pool today so that the next time you dose your pool, whenever that may be, you will always be above the minimum.

    I run my CYA at 60, which means my minimum FC is 5. I rarely let it get below 8, and it's usually around 10 or 11. Because I never want to let it get below the MINIMUM. Ever.

    Rant over.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    Re: Is this normal bleach consumption?

    Smykowski - Thank you! I never really thought of it that way. I always assumed I had to pick a middle sweet spot and that too much chlorine was bad. I also was under the impression (not sure if I'm right or wrong still) is that BBB is supposed to be a less expensive way of caring for a pool. If i'm dumping an entire container of bleach in the pool everyday (2-3$) then it doesn't seem that much less expensive (over several years, yes).
    Ohio, 27' x 52" AGP, New Install, Cartridge, 1.5HP Pump, K2006

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    pwrstrk's Avatar
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    Re: Is this normal bleach consumption?

    Quote Originally Posted by pwrstrk
    CYA level of 30. FC level of 2-6

    CYA level of 40. FC level of 3-7

    When you dose your FC shoot for the higher end so when you lose FC during the day you won't drop below min.


    Sent from my iPhone using Tapatalk.


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  16. Back To Top    #16
    Smykowski's Avatar
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    Re: Is this normal bleach consumption?

    Your CYA may be a bit low for your pool, so once you get that dialed in, the FC consumption will go down, and you will be adding less bleach per day to stay at the correct maintenance levels. At that point, it will definitely be cheaper. Don't forget that if you (hypothetically) were still on powder or pucks, your pH and TA would be yo-yoing, and you'd have to add even more chemicals to counteract those movements.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    pragmatic's Avatar
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    Re: Is this normal bleach consumption?

    Quote Originally Posted by pwrstrk
    Quote Originally Posted by pwrstrk
    CYA level of 30. FC level of 2-6

    CYA level of 40. FC level of 3-7

    When you dose your FC shoot for the higher end so when you lose FC during the day you won't drop below min.


    Sent from my iPhone using Tapatalk.


    Sent from my iPhone using Tapatalk.
    I caught it Jeff..but smykowski used his hands more in his explanation (like the FedEx commercial) Not picking on ya kmgt and I'm glad you started the thread It's always a good reminder to keep the FC higher than us newbies prefer.
    Dave My Pool Build, ODK Build
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