Twice a year, give your deck a good wash. Start by sweeping. A stiff bristle brush works best for dusting and getting in-between spaces.
Handy Tip: Sweep with the grain. It's easier. After the broom, pre-rinse your deck. Use a garden hose or pressure washer, go over the entire decking, move furniture around and include the fascia (the vertical side pieces around the deck edge).
Remove food or drink spills promptly. Wipe and wash the area with a mild detergent. Clear leaves in the fall Use a plastic shovel for snow removal.