The solar cover will slow or stop your CC from breaking down. Need the UV from the sun to tackle those for you. Also I feel like the higher FC may have an effect on the thin plastic of the solar cover, but can't say for sure.
A couple hours, maybe less. You're okay up to shock level and you shouldn't be much more than that when you finish the SLAM.Yesterday!! I could see the pattern in the shallow end. And the DE filter doesn't clog in the first 20 min of running.
After I pass the 3 tests. How long usually does it take for the FC level to go down enough for a safe swim?