I did have some cloudiness when testing. It's not much below 30...
Wow! FC up to 7!
Still have cloudy water...
- Thread starter Mid-West Infidel
- Start date
Wow! FC up to 7!
Seems like you are nervous about adding FC. Have you read about the FC/CYA relationship?
When your CYA gets to 30, you will be taking FC up to 12. If you take CYA to 40, it will be FC of 16. First you need to get that pH down to 7.2-7.4. You don't want your pool sitting around with 1ppm FC that long. That's why I suggested 7.
These are your shock levels to get rid of the cloudy water.
When your CYA gets to 30, you will be taking FC up to 12. If you take CYA to 40, it will be FC of 16. First you need to get that pH down to 7.2-7.4. You don't want your pool sitting around with 1ppm FC that long. That's why I suggested 7.
These are your shock levels to get rid of the cloudy water.
I understand that CyA basically protects the chlorine, helps it not burn off in the sun. But, that you can over do it too. I didn't realize the correlation as you describe it.
So, In the past couple of hours I've added what pool math says for pH of 7.4 and FC target of 5. Should I be adding shock too?
edit- 2-hrs later I have 1.5 FC and pH of 7.4
No. Don't add "shock". Just bleach or liquid chlorine.
Here is a little information on CYA: Pool School - Chlorine / CYA Chart
TFP does not generally recommend using "shock". When pools need help, like yours, we do what is called a SLAM which is where we elevate FC to a certain level (based on the chart above), and then maintain it at that level until certain criteria are met. One of those criteria is clear water.
I am encouraging you to get the pH down so that you can begin a SLAM and clear your water. Here is a link to how a SLAM is done: Pool School - SLAM - Shock Level And Maintain
Here is a little information on CYA: Pool School - Chlorine / CYA Chart
TFP does not generally recommend using "shock". When pools need help, like yours, we do what is called a SLAM which is where we elevate FC to a certain level (based on the chart above), and then maintain it at that level until certain criteria are met. One of those criteria is clear water.
I am encouraging you to get the pH down so that you can begin a SLAM and clear your water. Here is a link to how a SLAM is done: Pool School - SLAM - Shock Level And Maintain
Yup. Saw your edit. That FC is doing its job... Time to add a little stabilizer, and bump the FC. After you read up, of course...
pH now at 7.2
This afternoon I've added nearly 200 oz of bleach and still can't get above 1.5 FC. Both times I used what PoolMath said. I can smell bleach in the pool when I get near it. Going to add 20 oz of stabilizer and call it a night.
This afternoon I've added nearly 200 oz of bleach and still can't get above 1.5 FC. Both times I used what PoolMath said. I can smell bleach in the pool when I get near it. Going to add 20 oz of stabilizer and call it a night.
K. Tomorrow then. Dollars to donuts that the smell is from CC's, not FC's. CC smell is like hotel pool smell. Check CC in the morning too.
Last night, I also added another 120 oz. of bleach, after the stabilizer...
This morning:
Alk 90
pH 7.0
CyA 33
FC 2.0
CC .5
Ok. Just added some 20 Mule Team to raise the pH a bit. Then, I'll add another 111 oz bleach that PoolMath is calling for and will check FC after 10-min.
edit- FC 10-min after adding more bleach is 8
edit 2- Since the last FC reading I have swept the pool, and just did another FC, got a 7 (less than 2-hrs later). It looks like my shock level should be 12, should I add more bleach?
If your CYA is already 33 now and you just added more yesterday, use 40 as your CYA and shoot for that FC of 16. From 7-16, that's 203oz of 8.25%.
Just checking: do your jugs say 8.25%? Can you look for a date code on the bottle? Maybe a 5 digit number?
Just checking: do your jugs say 8.25%? Can you look for a date code on the bottle? Maybe a 5 digit number?
I added the stabilizer last night when my CyA was <30, it was 33 this morning.
The bottles of bleach are 8.3% Sodium Hypochlorite, date code is? It says MC 082 2333 in black ink, on the bottom. On the side, in black ink it syas A31615 IL-1
edit- just checked FC again. Down to 5. Added enough, per Pool Math to get back to 12.
That's great, especially as you probably should target 16 anyway because of the CYA add.
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Is that clorox bleach?
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Is that clorox bleach?
Don't bother doing the overnight if you still have slightly cloudy water. You can just to see the loss. Can you upload pictures?
Sure, once I can figure out how to clear some pics out of my files.... it won't let me upload anymore!
^^. Also, keep testing and bringing your FC back up to 16. Do this every two hours if you can.
clorox might have changed their date coding. That number doesn't mean anything to me. Would you mind double checking the numbers to make sure there's no typo? Thanks.
clorox might have changed their date coding. That number doesn't mean anything to me. Would you mind double checking the numbers to make sure there's no typo? Thanks.
That water isn't ready for the OCLT yet. Hang in there!
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What about the other number? The A.... one
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What about the other number? The A.... one