 When you do the ladder, you've got to go back and replace any sand and stuff like that. So it's not... Either way, you've got a little bit of work to do. But David, I don't know if you have a preference one way or the other or a secret that I'm missing. No, that's pretty much it. You could do it chemically, but you still have to get the dead moss out. It's kind of like sod down in those cracks. It's dead sod. So the pressure washer works well if you...