Every time I’ve looked into this topic I’ve seen lots of people say you need to partially refill the pool is that the only way to fix it? I was also just told that the pool can pop out depending on the water table where can I look to find my water table?
Help with high CYA
- Thread starter thiccflair21
- Start date
- Jun 22, 2014
- 52,059
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Welcome to TFP! 
The way to lower CYA (if it's really too high) is to exchange water. Proper water testing is a priority though. How are you testing the water? Also, what type of pool do you have? Your signature is blank. I'll post some links below to help.
The way to lower CYA (if it's really too high) is to exchange water. Proper water testing is a priority though. How are you testing the water? Also, what type of pool do you have? Your signature is blank. I'll post some links below to help.
- Jun 22, 2014
- 52,059
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Create Your Signature - Further Reading
www.troublefreepool.com
CYA Testing - Further Reading
www.troublefreepool.com
CYA Chlorine Relationship - Further Reading
www.troublefreepool.com
- Jun 24, 2021
- 16,401
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Replacing water is the only way to lower CYA.
Read "No Drain Water Exchange" here:
Draining - Further Reading
www.troublefreepool.com
I filled in the signature let’s see if it works. And I’m using the cheap Lowe’s Test Kit and the CYA is higher than the reading it provides, when I took it to Leslie’s I believe it was around 120.Welcome to TFP!
- Jun 24, 2021
- 16,401
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
You need a good test kit…link—>Test Kits Compared
Why? Pool store testing is notoriously wrong, and your test kit is insufficient to manage the water. Giving advice on wrong test results, we can do more harm than good.
Get a kit ordered. Add 5ppm of liquid chlorine per day until it arrives.
When it comes, post results! We'll get you going.
When it comes, do the CYA test starting at #8 here:
www.troublefreepool.com
Why? Pool store testing is notoriously wrong, and your test kit is insufficient to manage the water. Giving advice on wrong test results, we can do more harm than good.
Get a kit ordered. Add 5ppm of liquid chlorine per day until it arrives.
When it comes, post results! We'll get you going.
When it comes, do the CYA test starting at #8 here:
CYA - Cyanuric Acid Test
Cyanuric acid (CYA) is the chemical name for the product commonly called “pool water stabilizer” … Read more…
www.troublefreepool.com
It’s my parents pool and they don’t want to spend $100 on a test kit.You need a good test kit…link—>Test Kits Compared
Why? Pool store testing is notoriously wrong, and your test kit is insufficient to manage the water. Giving advice on wrong test results, we can do more harm than good.
Get a kit ordered. Add 5ppm of liquid chlorine per day until it arrives.
When it comes, post results! We'll get you going.
When it comes, do the CYA test starting at #8 here:
CYA - Cyanuric Acid Test
Cyanuric acid (CYA) is the chemical name for the product commonly called “pool water stabilizer” … Read more…
Ok read this and I hadn’t considered that I would need to buy another pump. I’m guessing it’s not safe to shut down the skimmer valve and just use the main drain and set the filter to waste?Replacing water is the only way to lower CYA.
Read "No Drain Water Exchange" here:
Draining - Further Reading
I wouldn't spend one penny or waste one ounce of effort with poor data. On any subject.
If doing an exchange then its fine because the water level will remain roughly the same. (Providing youre checking that the in and out flows stay about matched)