Chemistry question

[Fataltruth]

I recently drained and refilled my 12000 gallon above ground pool 24 ft round due to a cya value of 130 ( determined by taking sample to pool store). I drained 3/4 ish.
After refill, I ran pump/filter for 24 hours and then sampled. this is my chemistry
Ph = 7.2
Ta= 50
Hardness = 60
Free chlorine =2.5 ish
no combine chloride
Cya = 80

CYA is a bit higher than I thought but I think this is a good number to be at.
I added soda ash to get to about 7.5 ph. I am letting the pump/filter run to mix and then sample again and adjust TA next. I don’t think hardness matters? I have a vinyl pool. Does my plan make sense? Am I missing something? The pool math app says I should raise CL to 6ppm and hardness. Any help would be appreciated

 

[Oly]

Welcome.
How are you testing your pool water?
A 12000 gallon pool is serious business and a proper test kit is the foundation of a balanced pool system. Test Kits Compared FC/CYA Levels

 

[wireform]

Fatal'
The fatal truth is you're relying on pool store testing which is at best a guessing game. As OLY said it, get your own testing kit and you'll be the only one to blame for perfect water once you get a handle on things.

 

[Fataltruth]

I’m using Taylor 2006 kit

 

[Fataltruth]

Welcome.
How are you testing your pool water?
A 12000 gallon pool is serious business and a proper test kit is the foundation of a balanced pool system. Test Kits Compared FC/CYA Levels

Using Taylor 2006 kit

 

[wireform]

( determined by taking sample to pool store)

Which one is it pool store or your own CYA testing

 

[Fataltruth]

Which one is it pool store or your own CYA testing

The pool store said 130. The results I have shown in detail after refill was from my Taylor 2006 kit

 

[Fataltruth]

Fatal'
The fatal truth is you're relying on pool store testing which is at best a guessing game. As OLY said it, get your own testing kit and you'll be the only one to blame for perfect water once you get a handle on things.

I have a Taylor 2006. Which is the specific results I have listed. The 130 came from the pool store

 

[Oly]

Focus on keeping your FC in the target range for your CYA, this is priority #1 FC/CYA Levels
Test your FC a hour after adding to confirm you are near the top of the target range, don't assume at this point.
The next day test again just before you add to determine your daily FC loss. Soon you will get a feel for your pool system and the FC demand.
Yes CH is not a major concern with a vinyl liner. You should list your pool details and equipment in your signature so others can provide the best advice going forward.

 

[wireform]

So the pool store had it wrong. According to what you have now if that's right would mean you may have been over 300 on the CYA.

 

[Fataltruth]

Focus on keeping your FC in the target range for your CYA, this is priority #1 FC/CYA Levels
Test your FC a hour after adding to confirm you are near the top of the target range, don't assume at this point.
The next day test again just before you add to determine your daily FC loss. Soon you will get a feel for your pool system and the FC demand.
Yes CH is not a major concern with a vinyl liner. You should list your pool details and equipment in your signature so others can provide the best advice going forward.

Thank you. I’ll do this. Should I adjust TA? Or hold off

 

[wireform]

Leave all alone except for slam. When done we can reevaluate but 50 still is acceptable.