I was so lucky to have found TFP BEFORE I even built my pool. After following the advice and expertise from this forum, I am proud to say this is my 3rd year in a row of opening to sparkling water. People comment throughout the year how amazing my water looks and believe I spend hrs a day maintaining my pool. If they only knew!! TFP has become my pool care bible and I simply laugh when I'm in the pool store buying little items and listening to people being taken for a ride and sold hundreds of dollars of chemicals they dont need. All I can say to anyone reading this is research on your own, get your own test kit and follow the advice on this forum and I can guarantee you trouble free pool ownership forever. All I did after removing the cover is throw in the robot for 30 minutes to clean some dirt and leaves. Now working on getting my CYA up to chart level and sitting back and enjoying another beautiful season of trouble free pool maintenance.