dugg
New member
Are there any of the external return pumps, that don't cool themselves with the tank water? I am sick to death of this mag7 constantly getting the impeller assembly coated with calcium, and freezing up. It is a once a month issue with this pump, and sometimes more often then that. The screw holes are wearing out taking it apart so much to clean the impeller. The impeller it's self doesn't get any build up, it's the magnet inside the pump where all of the heat is that gets caked up.