Hi all. New to the forum and need some guidance. I read as much as I could as an unregistered guest.

Typical green algae/cloudy pool. I have started with liquid shock and have gone from green to steel blue and cloudy. I can see down about 18"-24".

18' x 33' oval approx. 15,000 gals
above ground with vinyl liner
sand filter hayward pump

I am using the HTH 6 way kit

Chlorine - 0-trace
pH - 8.2+ (as high as it would read)
TA - 100 ppm
TH - 80 ppm
CYA - 0

Based on my reading, I need to lower pH and shock. I used the pool calculator to determine I need 4 gallons bleach and the calculator gave me amounts of acid to add based on delivery method.

My first question is does it matter which order I add chemicals? Do I tackle pH then go after the Cl or vice versa or does it matter? From other threads it looks like starting with shock is the first order.

My second item is that I struggled all last year keeping Cl levels up. I just used strips to test and eyeballed clarity. I had a few algae issues but it wasn't really a struggle but I know I need to keep my CL levels up. Based on my reading of the forum, after I get the Cl and pH working, I can use stabilizer to get the CYA up. Am I on the right track?

Thanks!