I took the cover off today...yay! We went from a freeze a couple of weeks ago to almost 90 this week...pool thermometer reads 67. Here are my first numbers:
CYA none detected
I ran my pool pump and SWG throughout the winter. With your help I got better at maintaining my pool last season, but this is my first opening after closing for winter. I imagine my first step is to get some CYA in there, right?