Pool just turned teal/green, dumped in Chlorine... but no CC?

VinylDelight

Well-known member
Aug 9, 2022
105
MS
Pool Size
28000
Surface
Vinyl
Chlorine
Liquid Chlorine
My understanding was that CC is indicative that there is chlorine in the pool that is actively killing (or very recently if the chlorine was all "consumed") -- this may be incorrect since Im a newb.

But interestingly yesterday my pool looked a little too cloudy although there was a lot of pollen recently. I did a ph/CL test and turned out I was sitting (un)pretty at gooseegg chlorine. I dumped in a bag of shock (raised the inline chlorine tablet thing to 3 as well because I needed to buy chlorine liquid the following day). This morning my pool was visibly starting to green. So I put in 4 gallons of chlorine and this evening I tested the chlorine and it was 11 but the CC is 0. Why would the CC read 0?

Thank for reading.
 
CC results from the chlorine oxidizing ammonia compounds. Most algae does not create ammonia compounds and thus you can read 0 CC. CC is an indicator at the end of a SLAM Process.

Please post a full set of test results or link your Poolmath data.
 
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Just to further comment on the need for SLAM - don't wait. If you've got algae, the chlorine you're using now isn't getting you any closer to the finish line. It just prolongs the length of the inevitable SLAM!

If using tabs, you may need to replace water due to high CYA before embarking on a SLAM. Post more info - many folks here ready to help.
 
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I thought we got you off those tabs last season? Relapse perhaps? Post up all your results & we’ll get it going in the right direction. Let’s get back on the wagon.
707851D7-6EF4-4019-BB69-D0FA5C6C72A9.jpeg
 
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I thought we got you off those tabs last season? Relapse perhaps? Post up all your results & we’ll get it going in the right direction. Let’s get back on the wagon.
View attachment 479574
Lol, I was off the pills... I mean tabs for the most of it, but during the winter my Cl was fairly stable-y and I guess the cold just gave me a false sense of confidence that after the Chlorine ran out I switched to the tabs because my local store had no chlorine and I just said forget it. For that reason I believe my CYA is still in a good position although I cannot test it at night.

(I did dump in more chlorine tonight, turned on filter, ran robot.)
 
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Where are you at in Mississippi? There are several good options for liquid chlorine near me.
Get a good cya reading & all the others so you have a baseline,
lower ph to 7.2 & get the
SLAM Process going 👍🏻
 
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Where are you at in Mississippi? There are several good options for liquid chlorine near me.
Get a good cya reading & all the others so you have a baseline,
lower ph to 7.2 & get the
SLAM Process going 👍🏻
Oh for sure I have liquid now for the new algae. I'm hoping I learned not to get "too comfortable" and, for better or worse, the prior owners advice on pool care stayed with me and that probably helped me flip flop a little... but after this algae bloom I really hope I live the troublefreepool lifestyle lol. I plan to make a plan for checking chlorine using the pink powder more regularly as well. And keeping a stockpile of chlorine liquid will move up my todo list.

As an aside, how many gallons does the typical TFP user hoard (I suppose that would be measured in months)?
 
As an aside, how many gallons does the typical TFP user hoard (I suppose that would be measured in months)?
Other than the unusually large amount for a SLAM Process, the amount of liquid chlorine you would store for normal day uses could depend on how much you use each day and your available storage apace since it's best to keep chlorine indoors in a cool dry place. For your 25K pool, one gallon of 10% chlorine is about 4 ppm. We generally can expect to lose anywhere between 2-4 ppm of FC each day on a hot summer day, so you can estimate from there how much you'll actually need to last a week or two.
 
Other than the unusually large amount for a SLAM Process, the amount of liquid chlorine you would store for normal day uses could depend on how much you use each day and your available storage apace since it's best to keep chlorine indoors in a cool dry place. For your 25K pool, one gallon of 10% chlorine is about 4 ppm. We generally can expect to lose anywhere between 2-4 ppm of FC each day on a hot summer day, so you can estimate from there how much you'll actually need to last a week or two.
I want to say that I read a rule of thumb that chlorine can be stored up to a year before any meaningful degradation. I don't plan on getting that much at once, but is that generally a fair statement?

(Additionally, I have a pool shed that is entirely covered although not climate controlled so I expect 0 loss due to sunlight and the heat and cold really wouldn't be extreme; but certainly not like on a store shelf I understand.)
 

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Other than the unusually large amount for a SLAM Process, the amount of liquid chlorine you would store for normal day uses could depend on how much you use each day and your available storage apace since it's best to keep chlorine indoors in a cool dry place. For your 25K pool, one gallon of 10% chlorine is about 4 ppm. We generally can expect to lose anywhere between 2-4 ppm of FC each day on a hot summer day, so you can estimate from there how much you'll actually need to last a week or two.
Woof - I hadn’t considered how strong the SWCG value proposition had gotten until I read this… a gallon a day at $8-9. Ouch
 
Could be pollen. Here in Texas oak catkins are falling. Heavy rain turned my pool from clear to green overnight, purely pollen. I've been keeping FC at 10, but still turned green. Before the rain, when clear, scooping out catkins would just drip green water when net was pulled out. That stuff is nasty! Hopefully a few days with pump 25/7 it will clear up. I pull out at least 2 gallons of catkins daily lately.

Well, CC just started rising, starting slam ☹️. Having my FC 25% above nominal all winter doesn't seem to prevent oak pollen from creating algae.
 
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