You must test more carefully.
On Sunday, your pH was 7.7 now 8.2, that's a testing error unless you added something to your pool.
On Sunday, your CYA was 25, now it's 50, please check your results.
The FC will always be dropping. How much Chlorine are you adding each day?
On Sunday, your pH was 7.7 now 8.2, that's a testing error unless you added something to your pool.
On Sunday, your CYA was 25, now it's 50, please check your results.
The FC will always be dropping. How much Chlorine are you adding each day?