I cleaned my filters and screen thoroughly three days ago. As soon as I started it back up, the “Check System” light was flashing with the message on the Pool Pilot reading “Purifier Off – Check Flow”. I took everything apart again this afternoon including the cell and everything is flowing great (20 psi) and the water is crystal clear. Yet, the flashing light is still on and my purifier is off. My fear is my water is going to get out of whack and/or my Pool Pilot is malfunctioning (bigger fear of course). Any suggestions?