Ok. Father in law has a roto rooter, so I just saved a shit load of money. Good news: the toilet drain isn't the problem. Bad news: it's in the drain from the washing machine. And its looking like I'm going to have to cut apart the wall, cut the pipe, & replace a 3 - 4 ft section. We can't even get the snake past the floor to the clean out, or even to the 90° bend. The toilet main drain clean out looks great.