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Thread: I super chlorinated my green salt water pool

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    Poolipop's Avatar
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    Question I super chlorinated my green salt water pool

    Hi everyone, I bought an older home with a pool that was installed in 2006. I am a new pool owner and have had a very difficult learning curve trying to understand the problems and solutions to algae and pool chemistry. I feel a bit out of control at the moment and need to know if I have over chlorinated my pool.

    26,000 Gallons
    IG (in ground)
    Vinyl
    Filter: Hayword S220T Sand
    Hayword Super Pump (1 hp)
    CircuPool Si Plus SWG

    9-13-2014
    Status: Totally Green
    Remedy: Added 2 gallons of 8.25% Bleach + 6 cups of 99% chlorination granules
    FC - 0
    CC - 0
    pH - 7.2
    TA - 80
    CH - 30
    Acid Demand - OK

    9-14-2014
    Brushed pool and vacuumed sediment
    SWG: 75%
    Pump running all day

    9-17-2014
    Status: Deep end still green
    Remedy: Added 3 caps of Yellow Trine around edges of pool + Added 2 gallons of 8.25% Bleach + 3 cups of 99% chlorination granules + 2 pucks
    Brushed pool

    9-18-2014
    Status: Blue and Cloudy, sand filter is very slow at filtering and I am thinking about adding Diamacious Earth (DE)
    FC - 5+ (My kit only goes to 5, I ordered a more advanced kit today)
    CC - 5+
    pH - 8+
    TA - 90
    CH - 30
    Acid Demand - Tells me I need to add a lot of CYA (I did not)


    Should I try and lower the pH and add the CYA or wait until things settle out? Any other advice is welcome. Thanks!

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    Charlie_R's Avatar
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    Re: I super chlorinated my green salt water pool

    Welcome to TFP!

    A question or three for you:

    1. What are you using to test your pool water?

    2. What is in the chlorinating granules?

    3. What kit did you order?

    Given that you have no idea what your actual CYA level is, that is a good call in not adding any yet.

    Yes, you should add Muriatic acid to lower you pH. Bring it down to somewhere around 7.5.

    The acid demand is specifically for your pH, not your CYA/stabilizer/conditioner. Since you have been using pucks and granular chlorinator, your CYA could be high already. Best not to add any before you know what the actual level is.
    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: I super chlorinated my green salt water pool

    Hi Charlie,

    1. What are you using to test your pool water?
    Poolmaster 22260 Basic 5-Way Test Kit with Case

    2. What is in the chlorinating granules?
    Bought a bucket of 99% active agent Chlorinating granules from sams club

    3. What kit did you order?
    Taylor K-1515-A, but I take it that I cannot test for CYA with either of these kits.... What do you recommend... TF-100, K-2006, other?

    OK, I may not have enough muratic acid on hand to lower it sufficiently, but I will go and get some tomorrow. I will report back when I have the proper kit to measure CYA.

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    Mod Squad jblizzle's Avatar
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    Re: I super chlorinated my green salt water pool

    The TF-100 is the better value.

    What is the ingredient in the granules?
    Jason, TFP Moderator
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    Re: I super chlorinated my green salt water pool

    PH reading may not be accurate at high CL levels..... Being that you don't have precise reading for chlorine, I think I'd wait for accurate readings before adjusting PH, since it was possibly only 7.2 before the high doses of chlorine were added.
    26' X 52" Intex Ultra Frame. Intex Sand Filter
    26' X 52 Intex Ultra Frame Install
    You can lead a horse to (clear) water, but you can't force him to swim in it!

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    Poolipop's Avatar
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    Re: I super chlorinated my green salt water pool

    9-18-2014
    Added 2 quarts of muratic acid
    PH still 8+

    I will take PA girls advice and wait till things settle out and I get the new pool testing kit.

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    Smykowski's Avatar
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    Re: I super chlorinated my green salt water pool

    Which kit did you buy?

    While you're waiting for it, do as much reading in PoolSchool as you can handle. Start with the link in my signature.
    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: I super chlorinated my green salt water pool

    I will be getting the TF-100 with stirrer after I donate

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    Re: I super chlorinated my green salt water pool

    When you buy MA, make sure you get the full strength stuff, and not what is labeled "Safer". The safer stuff won't hurt your pool, it is just far weaker. Keep using MA to get that pH under 7.8.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Re: I super chlorinated my green salt water pool

    I was just at lowes and was contemplating the two kinds: safer and regular. I decided regular because I figured they either watered down or added extra non-essential stuff. I was right! I am already gaining the TPF instinct, woohoo!

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    Re: I super chlorinated my green salt water pool

    9-22-2014
    Received my TF-100 test kit today (quick).
    Status: Blue and Cloudy
    FC - 4.5
    CC - 0.5
    TC=FC+CC=5
    pH - 6.8
    TA - 30
    CH - 125
    CYA- 50

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    Re: I super chlorinated my green salt water pool

    You need to adjust you PH up, now.
    26' X 52" Intex Ultra Frame. Intex Sand Filter
    26' X 52 Intex Ultra Frame Install
    You can lead a horse to (clear) water, but you can't force him to swim in it!

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    pwrstrk's Avatar
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    I super chlorinated my green salt water pool

    You also need to get your FC up. 4 is the min for a CYA level of 50. You should target 7-8 and never let it fall below 4.
    I see now you have an SWG. After you get water clear your CYA level for a SWG is 70-80 ppm. If your water doesn't clear up with getting FC up you may want to bring your FC up to shock level which is 20.
    If you could add all your pool and equipment info to your sig that would be great. It helps us help you better. 😎
    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: I super chlorinated my green salt water pool

    According to pool Calulator:
    FC - 4.5 to 6 --> Add 58 oz bleach (or increase SWG?)
    TC=FC+CC=5
    pH - 6.8 to 7.6 --> Add 10-12oz (120oz) boxes of Borax or 5-12oz (60oz) boxes of washing soda(uhh, is this right?)

    I have a Salt Water Generator (SWG), should I increase the FC to 7 by adding bleach or increase my SWG production?
    Last edited by Poolipop; 09-22-2014 at 07:28 PM. Reason: Had PH wrong

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    pwrstrk's Avatar
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    I super chlorinated my green salt water pool

    You bleach to bump your FC up. The SWG is just to maintain FC levels. Its easier on the SWG cell that way.
    Also the higher CYA level of 70-80 for a SWG pool helps protect your FC levels.
    When I first saw your post I thought it was a non SWG pool. After reading I see you have a SWG. My bad. 😎
    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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    Mod Squad tim5055's Avatar
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    Re: I super chlorinated my green salt water pool

    Quote Originally Posted by Poolipop View Post
    According to pool Calulator:
    pH - 6.8 to 7.2 --> Add 10-12oz (120oz) boxes of Borax or 5-12oz (60oz) boxes of washing soda(uhh, is this right?)
    I get 43oz(weight) 37oz(volume) washing soda/Soda ash or 85oz (weight) 81oz (volume) borax

    Your TA is low so I would use the washing soda/Soda ash

    - - - Updated - - -

    Quote Originally Posted by tim5055 View Post
    I get 43oz(weight) 37oz(volume) washing soda/Soda ash or 85oz (weight) 81oz (volume) borax

    Your TA is low so I would use the washing soda/Soda ash
    Is this a plaster/gunite pool? If so your CH is also low.

    It would help us if you would add the following information to your signature

    • The size of your pool in gallons
    • If your pool is an AG (above ground) or IG (in ground)
    • If it's IG, tell us if it's vinyl, plaster/pebble, or fiberglass
    • The type of filter you have (sand, DE, cartridge) and, if you know, the brand and model of the filter.
    • If you know, please tell us the brand and model of the pump, and mention if is it a two speed or variable speed pump.
    • Date of pool build/install, particularly important if less then a year old.
    • What kind/model of water test kit you are using
    • Other significant accessories or options, such as a spa , SWG, or cleaner
    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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    Poolipop's Avatar
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    Re: I super chlorinated my green salt water pool

    Thank Tim, I did put that information in my signature, but it must be waiting for approval.

    Here it is again, hopefully it shows in my signature soon:
    26,000 Gallon IG (in ground) Vinyl Pool
    Filter: Hayword S220T Sand
    Pump: Hayword (1 hp)
    CircuPool Si Plus SWG (Installed myself)
    TF-100 Kit w/ magnetic stirrer, lol


    Where do you buy your washing soda and borax in such large quantities?
    26,000 Gallon IG (in ground) Vinyl Pool
    Filter: Hayword S220T Sand
    Pump: Hayword (1 hp)
    CircuPool Si-45 Plus SWG (Installed myself)
    TF-100 Kit w/ magnetic stirrer

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    Mod Squad tim5055's Avatar
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    Re: I super chlorinated my green salt water pool

    Quote Originally Posted by Poolipop View Post
    Thank Tim, I did put that information in my signature, but it must be waiting for approval.

    Here it is again, hopefully it shows in my signature soon:
    26,000 Gallon IG (in ground) Vinyl Pool
    Filter: Hayword S220T Sand
    Pump: Hayword (1 hp)
    CircuPool Si Plus SWG (Installed myself)
    TF-100 Kit w/ magnetic stirrer, lol


    Where do you buy your washing soda and borax in such large quantities?
    You have vinyl, so ignore my CH comment.

    You want to use washing soda OR borax, not and. I think either of them are just a box or so at that weight. I got mine at WalMart last time I helped a friend out with his low pH.
    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: I super chlorinated my green salt water pool

    Quote Originally Posted by Poolipop View Post
    Thank Tim, I did put that information in my signature, but it must be waiting for approval.

    Here it is again, hopefully it shows in my signature soon:
    26,000 Gallon IG (in ground) Vinyl Pool
    Filter: Hayword S220T Sand
    Pump: Hayword (1 hp)
    CircuPool Si Plus SWG (Installed myself)
    TF-100 Kit w/ magnetic stirrer, lol


    Where do you buy your washing soda and borax in such large quantities?
    I get the boxes at Menards. Most all the big box stores sell 20 Mule Team Borax, it is a 76 oz box. About $4.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
    Central Illinois

  20. Back To Top    #20

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    Re: I super chlorinated my green salt water pool

    Walmart sells it in same size box.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
    Central Illinois

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