I want to thank my pool leak guy for steering me to this site. Had high CYA 130, pool store said change water. After the leak was repaired 50% water already drained. Did a full drain, bleach wash, and refill. So I found this site bought bleach, chlorine and a TF-100 kit. Had zero CYA and CH. I was raising them and the pool was looking better than it has in many years.
Then 8.5 inches of rain in 36 hours. The pool is dirty from tree and landscaping dirt. Last night I cleaned, vacuumed and backwashed.
Monday am before rain temp 76
Wed pm after rain temp 75
Added bleach last night to FC 5.
So... why did CYA go up? I was shooting for 30-35.
I will retest in the AM.
The pool water is very dirty now.
Other than testing and non stop running & backwashing what can I do?