...but I wonder whether it's a pesky neighbor or a kid pulling a prank. Got any enemies? I'll admit I don't know enough about spontaneous starting. It's enough of an effort to get the thing to start when I WANT it to start, let along something interesting like you've got. Still, I was pondering replacing the impeller for regular maintenance, and it's good to have a handle on how little time it takes. Thanks!
Dave
