Thank you for the quick reply! It's a 10k gallon fiberglass pool with a 1.5hp hayward superpump and sand filter. I currently use test strips that measures FC, pH and Alkalinity, and I get my water tested at the pool store every other week. The results I posted above were from the pool store. I would rather drain and refill to run lower chlorine levels, however I would be refilling with well water with high levels of iron, so I'm undecided on the best approach right now.