Hello again WW.
Glad you have your test kit now. Awesome! So, what should you look forward to doing:
- Bring your FC up to 31 during your SLAM
Pool School - SLAM - Shock Level And Maintain don't let it drop until you pass all 3 criteria:
1. Water is clear
2. You do not lose any more than 1ppm of FC overnight (that's the OCLT)
3. CC (Combined Chlorine) is <.5
Testing your FC during the SLAM is most important. Remember, continue to run your pump 24/7 during a SLAM. Remove any “muck” and debris, scrub all parts of your pool to expose any algae, and vacuum/clean (or backwash) filter as necessary. You may have to do this several times. It's a lot of babysitting, but with patience and consistency, you will succeed.
After the SLAM, that's when you'll let the FC come back down and check your PH level (7.2-7.8). Not now though. The high FC messes-up that test.