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Thread: Cloudy Water

  1. Back To Top    #1

    Join Date
    Feb 2009
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    North East Thailand
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    73

    Cloudy Water

    Hello
    I recently added soda ash to my pool and the water has turned cloudy I can just about see the top entry step.
    I have carried out a full water test this morning and recorded the following results: -
    FC - 10
    CC - 0
    TC - 10
    pH - 7.5
    T/A - 50
    CH - 600+ I stopped adding drops at 60
    CYA - 50

    The CH level is obviously far too high, what should I do about that and are there any other measures to take concerning the other results.
    Regards to all
    Mike Court
    Regards
    Mike Court
    In ground Pool size 12m x 5m x 1.3m av
    Concrete construction with tiled base and sides
    750 Sand Filter
    1.5k Pump
    I don't have a skimmer, around the perimeter of the pool is a plastic grate above a concrete channel that directs overflow into holding tank.

  2. Back To Top    #2
    linen's Avatar
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    Jul 2010
    Location
    Twin Cities, MN
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    8,649

    Re: Cloudy Water

    I am guessing it is a result of the high calcium in you water reacting with the soda ash and causing precipitation (I think calcium carbonate). I would test CH again, just to see how high it is. Do you have the TF-100 kit or something similar. In the TF-100 extended directions for CH it details a 10 ml sample instead of a 25 ml sample (saves on reagents...which is good when you are as high as you are). See: http://www.troublefreepool.com/exten...1.html#p206396

    I just noticed your FC is a just a little high for normal, is there a reason for that? You might want to try to lower your ph a little, maybe down to 7.2 for now which may help the precipitation to go back into solution (if that is what is going one here). Be careful when at that high of FC when measuring ph, FC over 10 ppm usually causes high false readings for ph. You should be okay at/or below 10 ppm FC though.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  3. Back To Top    #3

    Join Date
    Feb 2009
    Location
    North East Thailand
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    Re: Cloudy Water

    Hello Linen
    Thanks for the information. I do have a TF-100 kit but there are no instructions shown for a 10mm sample, do I just make an approximation for the number of drops to add or is there a more accurate way of doing it.
    Regards
    Mike
    Regards
    Mike Court
    In ground Pool size 12m x 5m x 1.3m av
    Concrete construction with tiled base and sides
    750 Sand Filter
    1.5k Pump
    I don't have a skimmer, around the perimeter of the pool is a plastic grate above a concrete channel that directs overflow into holding tank.

  4. Back To Top    #4
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Cloudy Water

    Quote Originally Posted by mikethaisun
    Hello Linen
    Thanks for the information. I do have a TF-100 kit but there are no instructions shown for a 10mm sample, do I just make an approximation for the number of drops to add or is there a more accurate way of doing it.
    Regards
    Mike
    Linen gave a link to the full instructions in his prior post. But, a snippet:
    If you expect that your CH level is extremely high, you can do the test so that each drop is 25, instead of 10, to speed up the process and save on reagent usage. Use 10 ml of pool water, 10 drops of R-0010, 3 drops of R-0011L, and multiply the number of drops of R-0012 by 25 to get your CH 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. ~

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  5. Back To Top    #5

    Join Date
    Feb 2009
    Location
    North East Thailand
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    73

    Re: Cloudy Water

    Hello
    Thanks for the information. I have tested again for CH using the 10ml method and got a result of 450. The water is clearing slowly and should be clear in a couple of days. Should I be OK with that or is there anything else I should do.
    Regards
    Mike
    Regards
    Mike Court
    In ground Pool size 12m x 5m x 1.3m av
    Concrete construction with tiled base and sides
    750 Sand Filter
    1.5k Pump
    I don't have a skimmer, around the perimeter of the pool is a plastic grate above a concrete channel that directs overflow into holding tank.

  6. Back To Top    #6
    frogabog's Avatar
    Join Date
    Jul 2010
    Location
    Portland, Oregon
    Posts
    1,578

    Re: Cloudy Water

    Have you tested your fill water? If a partial drain and refill would lower calcium, maybe that's an option for you?
    Where kids swim in 54 degree water, turn blue, and giggle happily cuz they got a POOL!
    Year 3 BBB -15' x 48" Intex Metal Frame - Was using (2) 1000gph Intex cartridge filters (see Full time pumping Intex). 2012, converted to 1600gph and sand filter+SWG = Sand filter love affair!
    Don't waste time and energy looking for a better value on test kits, the TF100 is the best deal around. I did the looking and spent the extra money, but you don't have to make the same mistake. Just go here: TFTestkits. I use Pool Calculator for min/max, and shocking chlorine levels.

  7. Back To Top    #7

    Join Date
    Feb 2009
    Location
    North East Thailand
    Posts
    73

    Re: Cloudy Water

    Hello
    Thanks for the information. I have not tried what you suggest but the water is clearing albeit slowly so if its not clear in a couple of days I'll give it a go.
    Regards
    Mike
    Regards
    Mike Court
    In ground Pool size 12m x 5m x 1.3m av
    Concrete construction with tiled base and sides
    750 Sand Filter
    1.5k Pump
    I don't have a skimmer, around the perimeter of the pool is a plastic grate above a concrete channel that directs overflow into holding tank.

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