Opened my pool a few days ago for the season. I started by slamming it with liquid bleach. Now wondering if that was correct to do first. Should I have adjusted my PH and CYA prior to starting the process? At what point can I test for PH and CYA, get an accurate reading, and adjust accordingly? Do I need to wait for FC to be at a certain level? Are both PH and CYA levels affected by the high chlorine used in the SLAM process. Thank you for the help.