I'm confused. I'm having a hard time distinguishing mid-vial color changes when I do the 2x and 3x Cl testing. All I know for sure is that my Cl is 5+ and my free Cl is 5+. How long should I keep shocking my pool? Water color is clear, but I can stir up small gray clouds off the wall and floor when I brush. Today is windy and we have all of Lubbock and Amarillo blowing through and landing in my pool so I had some brown dirt clouds while brushing. My PB has yet to install my Polaris.

Yesterday 1PM, Cl 5+, free Cl 5+
Yesterday 7PM, Cl 2 , free 2
Added 1# 73% CalHypo (supposedly a shock level for 16,500 gallons)

This AM: Cl 5+
Free Cl 5+
pH 7.5 or slightly higher
TA 80
CH 110

I haven't added any baking soda in the past few days as I thought I might because right now my pH seems to be relatively stable.

Should I just give the 2x and 3x test results my best guess and treat accordingly to maintain a shock level? I really have no way of knowing if I've attained a shock level for more than a few minutes since we've had the pool.

Thanks for any advice.
Sandy