We are new to this, ( our pool is a year old) and are having troubles with our SWG already. We have cleaned it as recommended and have ran it a full 24 hours to try to get our chlorine level up. We've treated the pool with the "start up" kit to open it this Spring, therefore adding almost 8lbs of shock already. At what point do we assume the SWG is defective and call Pentair?