Ah, it didn't freeze, it attempted the ultimate escape! Failed, then you tried to resuscitate, but it's still trying to end things!It really is the pump basket but on this pump the volute and pump basket are all one piece. Think I'll look at pricing a new pump too. It's old and noisy.
Is the feature pump an Intelliflo? The schematic posted earlier looks like it is a SuperFlo.This pump is used for our water features and is not our main pump.