• Seal your deck to prevent splintering and discoloration.
• Clean and reseal deck once a year.
• Check your deck once a year for loose boards and protruding nails.
• If you decide to clean your deck yourself, follow the directions on the cleaning solution.
• In some cases, it may be necessary to hose down the deck and surrounding area before applying cleaning solutions.
• Limit the amount of solution that gets on nearby plants.
• Allow the solution to sit for the length of time recommended in the instructions.
• Rinse the deck thoroughly.
• After the deck dries, put down tarps to protect plants, air conditioners and other items.
• Sealant can be brushed, rolled (with a paint roller) or sprayed on.

-- Tips courtesy of HomeAdvisor.com