Roto Rooter, that's the name...

Gave up and called the septic guy to snake out the drain. He chewed up something about 2 feet beyond where I'd been able to run the snake. Oh well. It forcced my hand at cleaning the basement before he came though, so that's an improvement. It was our first 90 degree day here, as well, so it wasn't a bad day to be knocking around in a cool basement. This lookin' on the bright side ain't such a bad thing.