It's been a long winter with no pool. I'm back here now, trying to remember all of the stuff I learned last summer. I have one question at the moment.
Opened the pool and CYA was 0 or close. I'm bumping it to 30 to begin the shock process because water was a bit green and stinky (haven't gotten an accurate FC reading yet). I added enough bleach to get the FC to 12 ppm and start the shocking process. I'd like to backwash one more time but I seem to remember someone saying you shouldn't backwash for a period of time after adding the CYA. I'm dispersing the CYA in two socks in front of my returns. It should all be out of the sock by now.