Let the wood sit and dry after cleaning it with chlorine bleach. You don't want any chemicals in the wood brightener to react with those in the bleach, so rinse it well.
Fill your garden sprayer with the wood brightening solution.
Spray an even coat of wood brightener over your wood.
Let the brightener sit and react for 15 to 20 minutes. You do not need to scrub the wood. There may be additional directions for this step included with your wood brightener.
Rinse off the wood brightener.
Before painting or staining the freshly-brightened wood, you will need to let it dry thoroughly, until its moisture is below 18 percent. This can take up to 3 days in warm, sunny weather.