Since 1997, HomeTips has guided millions of homeowners with original, expert advice for DIY home improvement and repair. Founder Don Vandervort, a nationally recognized authority, has written more than 30 books and countless magazine articles, been a host on HGTV, and served as MSN's home improvement expert. MORE
Is your wood deck stained or discolored? Several products are available for dealing with these stains and related problems.
Commercially-available powder or liquid-concentrates have a base of non-chlorine bleach or oxalic acid; a detergent may be part of the formula. Bleach-based products eliminate mildew, acid-based materials handle graying and stains.
Some products may darken woods such as redwood and cedar, so be sure to test any material in an inconspicuous place.
Always wear rubber gloves, goggles, and old clothes when working with these chemicals and follow the directions explicitly.
Caution: Never mix detergent containing ammonia with household bleach; the resulting fumes can be highly toxic. --DV
