I was away for the last two weeks. I took everyone's advice on here and left the pool partially covered with solar cover (75%), left SWG running at slightly more than normal % (not under IntelliChem control) and used IntelliChem to just monitor pH. I came back and the pool is clear. I measured levels with my test kit and pH agreed with IntelliChem at 7.7 (steadily went up from 7.4 to 7.7 over the two weeks based on history graph), so I added enough acid to get it to 7.5, and FC was at 8.0 (slightly high, but I expected that since I was running SWG higher % than normal) and TC was 8.5. All seemed good! I removed the cover and started the robot pool cleaner. This morning when I check the levels, IntelliChem was reporting 8.0 pH, and my test kit confirmed it. Also, the FC dropped to 6.0 and CC shot up to where I stopped adding drops and it was still pink.
If this were an ammonia issue, why did it not show on my first tests? Here are my other levels:
I'd appreciate any advice on what might be causing this? Do I shock and add more acid, or are these numbers being skewed by something else?