Sorry about the confusion and the multiple threads. I understand the chart and know to check my FC and CC daily to maintain in the target range. My CYA is at 30. I am going to take a sample to pool store to double check it, since it seems to be on the low end and I want to make sure I did it properly.
Ph is very high
- Thread starter Lprecords
- Start date
Then double check yourself. Asking the dumbest kid in class for his thoughts is not the wise choice. It will only confuse you further.
Trust your gut with your A+ average.
The pool store has a harder time with accurate CYA tests than you do. Save the fuel.
My CYA is low at 16ppm. Thoughts on adding liquid conditioner that is 35% monosodium cynurate monohydrate to get it back up to 30ppm?
- Jun 24, 2021
- 16,074
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Beware of the pool store CYA tests. 16ppm today could be 60ppm tomorrow.
Thanks. I got the dry and will put it in a sock and place it in the skimmer. I’m going to start with 1 pound and retest.
- May 3, 2014
- 62,702
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Yes, that is why I thought it would be best to increase it in increments, since the test is not always accurate. My Taylor test only goes as low as 30ppm and I knew it was lower than that, just was sure by how much. Even if the pool store is off by 5-10ppm, I’m still low. That’s my thought process. As of right now I have nothing eating my chlorine except sunlight. I have no algae. I passed the OCLT, but still losing Chlorine throughout the day. It must be due to low CYA?
- May 3, 2014
- 62,702
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Just pointing out that adding very small increments of CYA, do not expect the testing to show it.
Hello Trouble Free Pools!
I have a few questions that I’m hoping to get help with. I have passed the OCLT several weeks ago. Since then, my FC keeps dropping daily by 2-4ppm or more. I have 0 CC, and pool water Is crystal clear.
Here are my numbers as of this evening:
FC 2.0 down from 5.0 this morning
CC 0
PH 7.2
TA 100
CH 160
CYA 30
Last year I switched from a Perma salt system to liquid chlorine. I see that the CYA chart is different for SWG and a chlorine pool.
Here are my questions:
Since I was a salt water pool at one time, and there is salt still in my water, (although I’ve displaced a lot of water since then) is my CYA considered low? I guess what I’m asking is should I be using the swg chart for cya even if I’m using liquid chlorine? Is this why I’m losing so much chlorine daily?
And finally, if this type of loss is typical, is it acceptable if I just keep adding chlorine daily to reach the optimal level according to the pool math chart so I am certain my water is sanitized and safe for swimming?
Thank you in advance!
I have a few questions that I’m hoping to get help with. I have passed the OCLT several weeks ago. Since then, my FC keeps dropping daily by 2-4ppm or more. I have 0 CC, and pool water Is crystal clear.
Here are my numbers as of this evening:
FC 2.0 down from 5.0 this morning
CC 0
PH 7.2
TA 100
CH 160
CYA 30
Last year I switched from a Perma salt system to liquid chlorine. I see that the CYA chart is different for SWG and a chlorine pool.
Here are my questions:
Since I was a salt water pool at one time, and there is salt still in my water, (although I’ve displaced a lot of water since then) is my CYA considered low? I guess what I’m asking is should I be using the swg chart for cya even if I’m using liquid chlorine? Is this why I’m losing so much chlorine daily?
And finally, if this type of loss is typical, is it acceptable if I just keep adding chlorine daily to reach the optimal level according to the pool math chart so I am certain my water is sanitized and safe for swimming?
Thank you in advance!
- Jun 24, 2021
- 16,074
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
CYA of 30-60 is great for a liquid chlorine pool. Salt doesn't matter.
No, No.
Losing 2-4ppm per day is typical. You can consider raising your CYA to reduce the chlorine need. I would also raise your target for additions higher, so that when you test you are still in range. You should never see a test result lower than 4 when you test. If you are losing 4ppm, then add enough to get to 8, so that when you test after a 4ppm loss...you are till in range.
De rien.
Happy Saturday! Just a quick question.
I have a few people coming over to swim today, and I'm wondering if it is good to swim with these numbers, as I don't want to add any chlorine until this evening. I'm also wondering if the ph is too high for little kids? Like I said, I don't want to add anything to the pool just before people arrive, I want to wait until tonight. I think I'm okay, but would like a second opinion. Thanks!
FC 2.8
CC 0
PH 7.8
TA 100
CYA 30 (rounded up)
I see the Chart says I can be a minimum of 2ppm and a target of 4-6, just wondering because I know it will go down as we swim and I don't want to get below that 2. So, just wondering if it is okay to bring back up to 3ppm before guests arrive?
I have a few people coming over to swim today, and I'm wondering if it is good to swim with these numbers, as I don't want to add any chlorine until this evening. I'm also wondering if the ph is too high for little kids? Like I said, I don't want to add anything to the pool just before people arrive, I want to wait until tonight. I think I'm okay, but would like a second opinion. Thanks!
FC 2.8
CC 0
PH 7.8
TA 100
CYA 30 (rounded up)
I see the Chart says I can be a minimum of 2ppm and a target of 4-6, just wondering because I know it will go down as we swim and I don't want to get below that 2. So, just wondering if it is okay to bring back up to 3ppm before guests arrive?
- May 3, 2014
- 62,702
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I would suggest you add some chlorine. Not sure why you are hesitant. Raise it to 6-8 ppm FC.
pH is fine.
Start 10 ppm CYA worth of stabilizer dissolving using the sock method. Put the sock in the skimmer.
pH is fine.
Start 10 ppm CYA worth of stabilizer dissolving using the sock method. Put the sock in the skimmer.
I’m dissolving more dry stabilizer right now. I see that the recommendation is to run the pump for 24 hours. I will only be able to run it for about 18 hours total (including dissolving time). Will that suffice? How exact does it need to be? I’m only adding 10 oz.
- May 3, 2014
- 62,702
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
It should dissolve in an hour or two. Squeeze the sock and it will be gone. No real need to run the pump that long.
That's plenty to get it mixed. You just don't want to raise it any more before it's had plenty of time to appear in the teats.
If you werent needing to add more right away, you could resume your regular schedule upon squishing out the cloud and brushing.
Hi, I’m back with another question about chlorine. Right now my cya is at 30 and it’s taken all night and day for the chlorine to drop from 6ppm last night to 4.5 this evening . This is partly due to a bit cooler temperatures.
Right now my FC is at 4.5ppm and I’m debating whether to add any more Chlorine tonight and just wait and test in the morning and then add what I need to maintain that 4.5ppm. I’m trying to keep the level right in the middle of my target range, which according to pool math, it should be between 2-6.
Is trying to keep it at 4.5 acceptable for maintenance? What are your thoughts? What’s been happening is I’ve been bumping the Chlorine up at night to 7 or 8 on some nights and it’s taking a long time to get down to a comfortable 4 and I’m trying to avoid that. We are supposed to have cooler temps this week. Thank you!!
Right now my FC is at 4.5ppm and I’m debating whether to add any more Chlorine tonight and just wait and test in the morning and then add what I need to maintain that 4.5ppm. I’m trying to keep the level right in the middle of my target range, which according to pool math, it should be between 2-6.
Is trying to keep it at 4.5 acceptable for maintenance? What are your thoughts? What’s been happening is I’ve been bumping the Chlorine up at night to 7 or 8 on some nights and it’s taking a long time to get down to a comfortable 4 and I’m trying to avoid that. We are supposed to have cooler temps this week. Thank you!!
- Jun 24, 2021
- 16,074
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Why are you trying to hit the center of the range. Until you learn you pool, I would target 6 WHEN YOU TEST. If you have to dose higher, so you always test 6, so be it. That way, when you do have a high demand day and you end up at 4.5, you are still covered. #TeamRunHot.