Was out of town and prior to leaving pool was primed and lump running well but had some bubbles in basket and return jets. 22 hours later, I returned to see pump lost prime, Pump basket O ring had slipped out slightly while the lid still locked in place, and steam coming out of the pump basket. Water level low, and water boiling inside. I turned off pump quickly and added cold water to cool it. Replaced o ring but also replaced New pump basket lid. Primed quickly bit I still have some bubbles, I'm guessing the heat warped the suction pipe.
question: what would cause the o ring to come out of housing and stretch out and cause loss of prime?? I have to replace the pipes but my concern is how to prevent this in future.