If you do not fully remove the old layer then you will face some problems down the line that this article will touch on along with some tips and tricks of how to clean a wood fence with a pressure washer.
Bleach fence before staining.
Too much moisture in the wood prevents the stain from penetrating properly.
If you don t have access to a pump type garden sprayer dip a clean stiff bristled cleaning brush into the bleach.
Allow the fence to dry for at least 24 hours if you plan to sand paint or stain it.
The affects of bleach on wood decks and fences bleach is the old standard used for years in cleaning.
For best results choose a semi transparent natural oil based stain and apply it with a pump up garden sprayer.
Water raises the wood grain.
The main reason for this is to remove the old layer of finish before reapplying the new layer.
For best results let the cleaner work for about a minute and then run a brush over the area and then rinse it clean with a garden hose.
The cleaner application should be done when the fence or deck is dry.
On wood however the chlorine kills algae moss and mildew.
On hard nonporous surfaces a chlorine bleach solution is an effective sanitizing product that kills mold and neutralizes indoor mold allergens that trigger allergies.
You are now ready to re stain your deck or fence.