Butterfly said:Hey, You are done shocking when you meet this three criteria:
1. Your overnight FC loss is 1 ppm or less
2. Your CC is 0.5 or less and
3. Your water is sparkly
This is the overnight test.
If you have questions, please post back.
#3 seemed like a strange description of how my pool water should look but after arriving home yesterday I now understand. My water looks sparkly for the first time in over a year. And I thought my water looked good last year - wow, now it's sparkly. I'll be rechecking my FC in an hour or so and hopefully it held last night. Looks like I might be very close to the end of my water problems.

I'll post some pictures soon.