I currently have 1hp PAC-FAB challenger pump. I think it is about 10 years old. I run the pump 24/7 6 months out of the year in Alabama. This year I noticed the pump was little louder than what I remember. However, yesterday I noticed the noise was even louder. When I checked on the pump I couldn't even put my hand on the motor it was extremely hot. The motor however has not stopped running all summer and I assume its been running hot the whole time. Should I wait for it to die and do I need to just go ahead and replace now? Is it just a matter of the bearings becoming worn? Water is still flowing properly thru the unit. Any advice appreciated.