Cya plan for future

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J

Jsf721

Gold Supporter
Jun 24, 2022
381
Long Island, NY
Pool Size
38000
Surface
Vinyl
Chlorine
Liquid Chlorine
Pool was well balanced last I tested. Cya was at 90 and a SWG was installed. I am hoping the CYA continues to drop so that I can run lower free chlorine and still sanitize the pool. I’m not sure at what rate the CYA is going to drop, but since I’ve been running chlorine tablets for so long, I do not own any conditioner. Once the CYA drops to a level that I want to maintain do I just put pucks in floaters to supplement the saltwater generator or do I actually add CYA conditioner using the sock method I’ve read about? If I need to add conditioner for A pull my size. How much should I have on hand?

I’ve run high free chlorine to compensate for my high CYA levels basically since I found this place very successfully. What would you consider the optimal CYA level for saltwater generator pool knowing that I’m offsite Monday through Friday.
 
Your pool math logs are very old.
First recommendation is to stop using dry acid. Dry acid adds sulfates which damages concrete, plaster and metals. Use muriatic acid to lower pH.
Most pools do not get any benefit of CYA that is any higher than 60 to 70. Below about 60, you might see an increase in FC demand.
What is your current CYA? CYA degrades about 5-10 per month. 10 is more likely when your pool water is hotter.
We recommend you add chlorine stabilizer using the sock method.
Use pool math to determine how much to add. Link-->PoolMath
 
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PoolStored said:
Most pools do not get any benefit of CYA that is any higher than 60 to 70
Click to expand...
+1. Can confirm locally in full sun. I experimented last year with 80 and 90 and saw no difference from 70.
PoolStored said:
Below about 60, you might see an increase in FC demand.
Click to expand...
Also +1, but not just up north, everywhere. Pretty much we all get lulled into the CYA remaining solid and then WHAM. We see the FC loss once the CYA dipped low enough to 50 or 60 depending on how hot it is at that time.
Jsf721 said:
Once the CYA drops to a level that I want to maintain do I just put pucks in floaters
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If you see the CYA trending below 70, pucks are an option, but probably more PITA than they are worth. You'll have to factor their FC into the cell production and dial it down to compensate and then turn it back up. To get 10 CYA from pucks, the 3 of us here with similar large pools also get about 16 FC.
 
PoolStored said:
Your pool math logs are very old.
First recommendation is to stop using dry acid. Dry acid adds sulfates which damages concrete, plaster and metals. Use muriatic acid to lower pH.
Most pools do not get any benefit of CYA that is any higher than 60 to 70. Below about 60, you might see an increase in FC demand.
What is your current CYA? CYA degrades about 5-10 per month. 10 is more likely when your pool water is hotter.
We recommend you add chlorine stabilizer using the sock method.
Use pool math to determine how much to add. Link-->PoolMath
Click to expand...
My Pool math numbers are indeed very old because I started having trouble putting in new logs and I’m not exactly sure why. I’m gonna start a new post so that I can keep those up-to-date.

I stopped using the dry acid once I ran through what I had and I am in fact, using muriatic acid to lower my pH.
 
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Pucks are also acidic. If your pH and alkalinity are rock solid you will have to add borax and baking soda to compensate for the pucks. But if you're constantly adding acid, the pucks may help reduce the frequency of acid additions.

Personally, I like to add single chemicals to the pool. You'll end up with surprises when you add combo chemicals
 
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sduda210 said:
Pucks are also acidic. If your pH and alkalinity are rock solid you will have to add borax and baking soda to compensate for the pucks. But if you're constantly adding acid, the pucks may help reduce the frequency of acid additions.

Personally, I like to add single chemicals to the pool. You'll end up with surprises when you add combo chemicals
Click to expand...
Agree, 100% with your philosophy on that
 
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