It really depends on the age of the pump wether or not it is a good candidate for replacement. We can verify the date if you can provide me with the serial number off the back of your pump. Otherwise you can replace the pump with a new Bubble Blaster 1000 http://www.coralvue.com/reef-octopus-bubble-blaster-1000-skimmer-pumpor an Aquatrance 2000s http://www.coralvue.com/aquatrance-2000s-skimmer-pump