David, its according to the type of pump and the manufacturer. Some pumps are designed to be repaired while others are throw aways. I would recommend that you pull the pump, find out the manufacturer and call them to see if they have authorized service stations. It might be worth having the pump looked at to see if its worth fixing. Also, ask the manufacturer the list price of the pump and the life expectancy. If the pump lists for $125, why spend $75 to $100 to repair. If the cost of the new pump is low and its not to expensive to repair the old pump, you might buy a new one, fix the old one and then you’ll have a backup. If the life expectancy is 5 to 10 years and the pumps lasted less then that, it might be the wrong pump for the application. ON ANOTHER NOTE: if the pump runs for a while and then shuts off and is pumping when it runs, it sounds like the pump is kicking off on thermal overload. The stator might be bad. Good luck, Tony Renfro http://www.zoeller.com