Help: CC at 13

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rthompson10

Member
Jul 7, 2024
10
PA
All,
Using a new pool company this year for our community pool- 50k gallons. After opening Monday they tested free CL at 1.6 and combined CL at 13. They are recommending emptying pool and starting over or adding cloe to 100 lbs of shock. We weren't happy with previous company as pool was left with algae and high CYA that we tried to treat with bio product.
What would recommendation be here?,
 
JamesW said:
What was the CYA then and what is it now?

What exact product was added and how much product was added?

Please post a full set of test results.
Click to expand...
The company tested very little cya at opening- close to zero. With our test kit and test strips we came up with same readings. We used the attached product at end of pool season at recommendation of previous company. From memory it knocked measured cya by a good chunk but still over 100 so we were going to use it again but now no/minimum CYA
 
That is a bacteria that can potentially eat CYA and convert it into ammonia.

It is not reliable, but it can probably sometimes work.

You can drain and refill if it is safe to drain without damaging/floating the pool or you can try to SLAM to clear the ammonia.
 
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