Well, been so swamped with worked i'd taken the easy way out this year by using tri-chlor tabs instead of my usual bleach, and was still using 2 yr. old K-2006 Taylor test kit re-agents to test but only about 1x a week. I knew they were probably not great so went to test strips. Anyway, just got my new Taylor kit today and boy is my pool messed up.
Here are numbers

Chlorine 20
PH 8.0
Alkalinity 180
CYA above 100- I can't tell exact number

The chlorine has me baffled as I was putting in 3 tabs a week around and when they dissolved i'd put more. I just wasn't testing enough. I haven't put any tabs or chlorine in over 1 week. And it's 20! I can only guess what it was last week.

Got a lot of moving parts here so was going to start with this plan.
1. Lower Chlorine to reasonable levels
2. Get Alkalinity down with muriatic acid
3. Stop using tabs and go back to bleach.
4. drain my pool a bit to lower CYA

Does this sound like a reasonable plan? Thanks.