Accidentally added acid with a PH reading when FC is 20+

[ghreak]

FC - Free Chlorine - 22.5
CC - Combined Chlorine - < .5
pH - 8.0
TA - Total Alkalinity - 140
CH - Calcium Hardness - 220
CYA - Cyanuric Acid (stabilizer) - 40

First off I just want to say TFP has saved me a lot of headaches and money from the pool stores. Thank you for all the information and assistance. I struggled with green pools for a bout 3 years taking the advice from the pool store.

So this morning I ran a reading on my FC and PH and decided to add acid based off the high PH reading. I forgot that you get a false ph when FC reads above 10. I read FC of 22.5 and a ph of 8.0 this morning.

Added about 26 oz of 14.5 % MA.

Is it possible to know if I completely jacked up my pool balance because of this?

 

[tim5055]

Welcome to TFP!

Why is the FC so high? SLAM?

 

[Azgirl71]

Aerate the water by pointing return up to break surface of the water. aerarion will raise PH.

Welcome to TFP

 

[ghreak]

Yes SLAM is correct!

 

[tim5055]

Yes SLAM is correct!

your only real choice is to let the FC drop below 10, get a good pH reading, adjust pH then continue the SLAM. It will be a bump in your SLAM but not the end of the world.

Once you start the SLAM ignore everything but the FC levels.

 

[Richard320]

Your TA is high enough that if you did lower the pH too far, it won't stay down there for long. You don't have a metal heater to corrode, nor do you have plaster to etch, so I doubt you did any permanent damage. Deal with it after the SLAM.

 

[tim5055]

Your TA is high enough that if you did lower the pH too far, it won't stay down there for long. You don't have a metal heater to corrode, nor do you have plaster to etch, so I doubt you did any permanent damage. Deal with it after the SLAM.

I like Richard's answer better than mine.......

 

[ghreak]

Hi, Thanks for all quick responses.