Found a free dishwasher on the side of the road. As expected, it had issues: It leaked! This website helped me diagnose the issues quickly: The corner seals on the tub had been removed entirely (why would anyone do that?), and the shaft seal was bad. These parts were relatively inexpensive, and all in all the repair took about 45 minutes of diagnosis and repair. The video tutorials on this website really came in clutch. Thank you!