Thanks for the tip!

So I just tested and

PH 7.8
FC 1.0
CC 0.0
TA 90
CYA 30
CH 70

I know my chlorine is low right now, I usually add in the evening. I also know that I want my CYA to be a little higher so I am going to add some more stabilizer. It has been extremely hot and sunny here - 98 degrees plus/full sun for about 10 days in a row now. I am struggling to keep chlorine in the pool.

I think I should shock the pool. I am not sure. It has been heavily used the last 10 days so I was thinking it would be a good idea. WDYT?

How much will 1 qt of bleach add to my 19,000 gallon pool?

Overall besides low chlorine and low cya - does everything else look good?