Two. Yesterday morning, I rented a gasoline pressure washer from High definition and used four hours around the deck pressure washing it. I pump-sprayed the deck cleaner in sections, quick scrub having a nylon brush, then waited five minutes then electric power washed. The wood should be free of Dust https://bbsocialclub.com/story9392200/the-best-side-of-ppg-proluxe-deck-stain