You’re probably familiar with the lint trap on your dryer, and, ideally, clean it after every load of laundry. But did you know that your washing machine has a filter, too? If that’s news to you, that ...

Q: A couple of days ago, the city flushed out the water mains. For several hours after they finished, I got a lot of dark sludge in the water. Now my washing machine takes a long time to fill. Is ...