Weird CYA readings


Gold Supporter
TFP Guide
Jun 7, 2017
Damascus, MD
Yes just now, via a test strip....are those accurate (enough)?
Drop tests are more accurate but for ammonia it is probably ok. I think your bacteria is probably gone. Add chlorine again if you have it. What is your CYA level? Do you have the TF-100/Taylor test kit? If you have CYA in the water then your bacteria is gone.


Gold Supporter
TFP Guide
Jun 8, 2019
Milwaukee, WI
Menards? Mills Fleet Farm? You are really making me miss my MN/WI stomping grounds!
Why do you think I know where to recommend? ;D

I've seen 12.5% chlorine so far at:

- Menards
- Fleet Farm
- Woodman's
- Local pool store

My wife keeps pointing it out now that she's looking for it too. :)