Like I said you had a good run. Ya got almost 5 years out of the pump. Generally a value tub will have these types of problems after 5-6 years. Some of the better value tubs will make it longer. Things like the heater, pumps and controls will be first. As the plumbing and parts get brittle you may need to replace the entire tub over the next few years when it becomes not cost effective to repair. They change the tubs so often that you may want a new one anyway. It you went the quality high end tub route for twice the money you would be stuck with it for 15-20 years.