Thanks so much for the help with clearing my swamp. After weeks using tons of bleach, scrubbing, removing debris and testing, I finally have a blue pool that is rapidly clearing up. I brought the pool to shock level one last time yesterday and it held an FC reading of 25 overnight. CYA is 40. Is it safe to get in the pool with a reading that high? Do I need to just keep filtering and wait a few days for the levels to drop to the normal range before getting in?