 But also latex deck sealers, again, penetration becomes an issue. So we've cleaned it. We didn't use the sandpaper. We used the deck cleaner. That's all good. Just go one more step. There's one called a deck brightener. And a deck brightener is basically wood bleach. Gets rid of the stains out of wood. A deck bleach, an oxygenated cleaner, and then an oxalic cleaner.