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Thread: Accidentally added to much bleach to pool

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    Accidentally added to much bleach to pool

    I just shocked my pool to a chlorine level to get rid of mustard algae. I used 7.25 bottles of bleach. My wife noticed on the bottles of bleach that it was a higher concentrate of bleach. Kind of like the new laundry detergents that use less detergent for same wash loads. Any I might have added 3 jugs to much.
    Should I worry about anything?
    Eddie
    30 foot round pool. 4 feet deep.
    21,200 gallons
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    Mod Squad tim5055's Avatar
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    Re: Accidentally added to much bleach to pool

    Not at this point. Test the water in the morning and see what the FC level is. It should drop over the next couple of days.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Accidentally added to much bleach to pool

    I forgot to put down the chlorine shock level. It was supposed to be 23.8. So Obviously it's going to be a lot higher.
    Eddie
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Mod Squad jblizzle's Avatar
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    Re: Accidentally added to much bleach to pool

    Why such an odd shock level? That is not what Pool School or PoolMath says.
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    Re: Accidentally added to much bleach to pool

    I have mustard algae in the pool. I found a chart online that tells you the shock level to kill the mustard algae. Typical shock level from TFP chart doesn't get high enough to kill it.
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Mod Squad tim5055's Avatar
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    Re: Accidentally added to much bleach to pool

    Quote Originally Posted by jblizzle View Post
    Why such an odd shock level? That is not what Pool School or PoolMath says.
    chem geeks extended chart shows 23.8 for 40 CYA
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Accidentally added to much bleach to pool

    You haven't mentioned how you get your test results--what ARE the test results? Most everyone here using regular bleach instead of liquid chlorine is using 8.25% bleach. I'm assuming that's what your'e talking about. You don't mention where you get your bleach from either. Hope it is a bigbox such as Walmart or target whose turnover is pretty fast so the bleach doesn't get old and lose it's strength like you might find in a dollar store.

    - - - Updated - - -

    Shock level for mustard is 29. So if you added what I suggested you might have that would increase your FC by 28ppm. You might be in decent shape if not needing to add more.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
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    Mod Squad jblizzle's Avatar
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    Re: Accidentally added to much bleach to pool

    Did you read the mustard algae article in Pool School? PoolMath displays the mustard shock level as well.
    Jason, TFP Moderator
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    Re: Accidentally added to much bleach to pool

    Yes I did. That's where I found the 23.8 shock level. I meant to do that level but like I said I didn't realize the bleach was different. And I bought the bleach from Walmart. I just checked the pool and there isn't any more algae. Heck there's probably nothing living in the pool now.
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Re: Accidentally added to much bleach to pool

    Going back to July 24th in you other thread, your pool store cya number was 142? I don't see any more current numbers. Am I missing something? At 142, the mustard shock level is 75?
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
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    Polaris 280 vacuum/Polaris PB4-60 boost pump
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    Re: Accidentally added to much bleach to pool

    Quote Originally Posted by timerguy View Post
    Going back to July 24th in you other thread, your pool store cya number was 142? I don't see any more current numbers. Am I missing something? At 142, the mustard shock level is 75?
    I drained my pool last week to fix the cya. Cya is now 40.
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Re: Accidentally added to much bleach to pool

    Did you do a full SLAM, or just a short burst of high chlorine level? Otherwise, the mustard algae will be back, most likely.
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    Re: Accidentally added to much bleach to pool

    Quote Originally Posted by PAGirl View Post
    Did you do a full SLAM, or just a short burst of high chlorine level? Otherwise, the mustard algae will be back, most likely.
    Slamming. Suppose to hit it at shock level a couple of times. Since chlorine is accidents high, it's still above shock level. Cya and ph was good.
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Re: Accidentally added to much bleach to pool

    You are supposed to hold the SLAM level until you meet all three criteria to end:
    Less than 1 CC
    The OCLT
    And clear water.

    Then you take it to mustard algae level for a day or two. After that, you let the levels fall to the normal maintenance range for your CYA level. Otherwise, it will come back.

    You never answered how you were getting your test results. ??
    26' X 52" Intex Ultra Frame. Intex Sand Filter
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    You can lead a horse to (clear) water, but you can't force him to swim in it!

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    Re: Accidentally added to much bleach to pool

    Actually, if you pass the three criteria for ending the SLAM, you don't need to raise to mustard algae level.

    It's only when the SLAM isn't working as effectively as it should that you want to try the mustard algae chlorine level.

    Or, if the pool is so cloudy that you can't see the bottom, that means nobody should be allowed in the pool anyway, and you can start your SLAM by targeting the mustard algae level to speed things along. Standard shock level (as related to CYA level) is safe to swim in, mustard algae shock level is not.
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    Re: Accidentally added to much bleach to pool

    I have a test kit plus I get my water tested by the pool place weekly.
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Mod Squad jblizzle's Avatar
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    Re: Accidentally added to much bleach to pool

    What test kit?
    Pool store testing is horrendous and not worth the fuel to drive there.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Accidentally added to much bleach to pool

    From pool school:

    To permanently get rid of mustard algae, you first SLAM the pool normally, following the directions in How To SLAM Your Pool. Once you have completed SLAMing your pool in the standard way, raise the FC level up to the extra high mustard algae shock level for 24 hours. Use PoolMath, or see the Yel/MstrdShock column in the chart in this post, to find your mustard algae shock level.

    http://www.troublefreepool.com/conte...-mustard-algae
    26' X 52" Intex Ultra Frame. Intex Sand Filter
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    You can lead a horse to (clear) water, but you can't force him to swim in it!

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    Re: Accidentally added to much bleach to pool

    I've shocked the pool at the mustard shock level. However I tested it today which is about day 3 after the initial shock and it has dropped from 23.8 to around 10 according to my test kit. The pool store is about 5 mins. away from my house so I might try them tomorrow. I guess I need to invest in a better test kit since my mine only test chlorine level at 10 maximum. Right now my pool is crystal clear. it hasn't looked this clear in 2 years.
    Eddie
    30 foot round pool. 4 feet deep.
    21,200 gallons
    AG
    Sand filter
    Taylor FAS-DPD Testing kit

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    Re: Accidentally added to much bleach to pool

    It could be across the street and that won't make them any more accurate. No need to guess. You DO need one of the recommended test kits.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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