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It is currently May 22nd, 2012, 8:31 pm
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mikethaisun
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Post subject: Cloudy Water  Posted: August 31st, 2011, 10:22 pm |
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Joined: February 24th, 2009, 12:27 am
Posts: 71
Location: North East Thailand
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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.
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linen
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Post subject: Re: Cloudy Water Posted: September 1st, 2011, 12:09 am |
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Joined: July 30th, 2010, 8:56 am
Posts: 1709
Location: Minnesota
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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/extended-test-kit-directions-t25081.html#p206396I 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.
_________________
Going to Pool School and learning the BBB method of pool care with a TF100 test kit that helps me use the Pool Calculator to properly maintain the water in my: Round AGP 11K gal (free on CL) with a deep end, Meteor 20" sand filter, Matrix 1hp 2spd, 4 2ftX20ft Sungrabber panels, Intex SWCG (copper bars removed), and Borates. Also a Rubadub hot tub and a UDS (Ugly Drum Smoker) poolside.
If your water has you worried, do an Overnight Chlorine Loss Test (OCLT), and if you fail, then follow the Shocking Process until:
1. CC is less than 0.5 ppm, 2. An OCLT shows a loss of 1.0 ppm or less and, 3. The water is crystal clear.
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mikethaisun
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Post subject: Re: Cloudy Water Posted: September 1st, 2011, 3:16 am |
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Joined: February 24th, 2009, 12:27 am
Posts: 71
Location: North East Thailand
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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.
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Butterfly
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Post subject: Re: Cloudy Water Posted: September 1st, 2011, 6:32 am |
| Mod Squad |
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Joined: May 30th, 2007, 8:57 pm
Posts: 6592
Location: South Carolina
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mikethaisun wrote: 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: Quote: 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 - Pool Calculator - Pool School - Support This Site - Chlorine/CYA Chart
You're done shocking when:
1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.
18K IG White Plaster - 1.5 HP Pump - Hayward S-240 High Rate 300# Sand Filter, TF100 Test Kit
"The person who says it cannot be done should not interrupt the person doing it." Chinese Proverb
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mikethaisun
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Post subject: Re: Cloudy Water Posted: September 1st, 2011, 11:31 pm |
| Lifetime Supporter |
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Joined: February 24th, 2009, 12:27 am
Posts: 71
Location: North East Thailand
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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.
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mikethaisun
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Post subject: Re: Cloudy Water Posted: September 2nd, 2011, 3:55 am |
| Lifetime Supporter |
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Joined: February 24th, 2009, 12:27 am
Posts: 71
Location: North East Thailand
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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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