Water cloudy. Chemistry is spot on

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Brownpow121

Active member
Sep 7, 2023
42
Tampa, FL
Pool Size
7500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-3)
hi all. I have been getting a slight bit of cloudiness to my water. All of my chemistry is in line. I was running a higher TC number since the pool was built about 9 months ago and through the winter. The cloudiness started coming on once the weather warmed, suns out, and chlorine is now around 3 vs 8 (where it was forever)

Any thoughts?

Ph 7.8
TA 70
Ch 425
Cya 55
Water temp 77
Salt level 3200
 
It's pollen season by you, but you need to prove it.

Overnight Chlorine Loss Test

Anytime you ever suspect anything algae / water clarity related, remove the sun from the equation and OCLT.

Don't come ask. Just do.

Then come tell us *why* you are doing an OCLT and we'll high five you and help pass the time waiting for the results.
 
Brownpow121 said:
hi all. I have been getting a slight bit of cloudiness to my water. All of my chemistry is in line. I was running a higher TC number since the pool was built about 9 months ago and through the winter. The cloudiness started coming on once the weather warmed, suns out, and chlorine is now around 3 vs 8 (where it was forever)

Any thoughts?

Ph 7.8
TA 70
Ch 425
Cya 55
Water temp 77
Salt level 3200
Click to expand...
Are you measuring TC or FC? Theres a big difference and one being high can explain the cloudiness😉
 
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Best case is that your FC is 3 currently, but that is still the bare minimum for your CYA (60). I would add some Liquid Chlorine to get it up to 5+, then do your OCLT tonight.
 
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duraleigh said:
All other advice is excessive and peripheral for now......Do the OCLT and report the results.

That will get you headed down the correct path.
Click to expand...
Okay. I did the OCLT. Last nights water TC: 1
This Am’s water was almost 1 ( I say this because 1 drop of my R-0871 just about turned clear.

I have my SWGC set at 40 for a week now which has been at 20 since I have had the pool. It seems I can’t get my chlorine up.

Any advice. Should I SLAM? Never have before so I’ll have to get my bearings.
 
Do the oclt at target range fc levels for your cya.

IMG_9603.jpeg
You need the fas/dpd test to measure fc & cc separately to perform a proper
Overnight Chlorine Loss Test & carry out the SLAM Process

TC is fc+cc. The combined TC number is meaningless without context.
What test kit do you have?
 
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The SWG needs to be off for the OCLT.

Ignore TC. 4+0 = 4 and 1+3=4 tell 2 totally different stories. The 4 means nothing.

Add liquid chlorine to get to target range, shut the SWG off and try again. :)
 

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Seems I am getting 10
Different responses here. My SWG only runs during the day. So when I did the overnight test, it was off before and after.

FC=1
CC=0
TC=1
CYA=50 (I added CYA last week according to Pool Math)

If I am to add liquid chlorine to get levels back up, can you share the formula for my size pool and how much I need?
 
Brownpow121 said:
My numbers are the combined FC + TC. I use the TF-100 test kit.
Click to expand...
Great 👍🏻 list your fc & cc separately
I think you may be confused
Fc is free chlorine (the first part of the test with the powder & r0871)
Cc is combined chlorine (the 2nd part of the test where you add 5 drops of r0003 & if it turns back pink then follow with r0871)
TC is total chlorine (the total of fc & cc numbers)

Brownpow121 said:
CYA is 50
Click to expand...
IMG_9605.jpeg
This counts as 60.
If between two lines on the test you always round up
 
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Brownpow121 said:
Seems I am getting 10
Different responses here. My SWG only runs during the day. So when I did the overnight test, it was off before and after.

FC=1
CC=0
TC=1
CYA=50 (I added CYA last week according to Pool Math)

If I am to add liquid chlorine to get levels back up, can you share the formula for my size pool and how much I need?
Click to expand...
Use
PoolMath to calculate amounts
 
Brownpow121 said:
Seems I am getting 10
Different responses here. My SWG only runs during the day. So when I did the overnight test, it was off before and after.

FC=1
CC=0
TC=1
CYA=50 (I added CYA last week according to Pool Math)

If I am to add liquid chlorine to get levels back up, can you share the formula for my size pool and how much I need?
Click to expand...
They are just saying not to report TC anymore. The TC number is irrelevant.
 
Brownpow121 said:
If I am to add liquid chlorine to get levels back up, can you share the formula for my size pool and how much I need?
Click to expand...
It depends on the strength of liquid chlorine you have but 10% is the most common.
Here’s how much 10% LC you would need to raise your fc from 1ppm to 9ppm (high target on the chart) in your 7500 gallon pool. An increase of 8ppm.

IMG_9609.png
 
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I added liquid chlorine And got my FC levels up about a week ago to 6. Tested today and I am at FC of 3. SWG set at 20. Salt level 3200.

It seems my chlorine drops quickly. My pool gets full sun and. Ow the weather is warming here in FL. Any thoughts?
 
Brownpow121 said:
I added liquid chlorine And got my FC levels up about a week ago to 6. Tested today and I am at FC of 3. SWG set at 20. Salt level 3200.

It seems my chlorine drops quickly. My pool gets full sun and. Ow the weather is warming here in FL. Any thoughts?
Click to expand...
Did you do the oclt with fc in target range (4-9ppm)?
If not - that’s the first step
You want to rule out organics before blaming the sun.(increasing cya) incase you need to slam.

How long are you running your swcg at 20%?
In 24 hours that setting only produces 1.7ppm in your pool volume
IMG_9674.png
 
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Mdragger88 said:
Did you do the oclt with fc in target range (4-9ppm)?
If not - that’s the first step
You want to rule out organics before blaming the sun.(increasing cya) incase you need to slam.

How long are you running your swcg at 20%?
Click to expand...
Ahh. Sorry. I’ll run the second oclt then come back.

My SWG runs at 20 for 8hrs a day with the pump at 8 hrs also. It’s been at that setting for the last two weeks.
 

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