How to wash walls The most efficient method
To prepare walls for washing, dust or vacuum them and spot clean heavily soiled areas with a heavy-duty household cleaner. Remove crayon or scuff marks by applying a paste of baking soda and rubbing lightly with fine steel wool. A solution of 1 tablespoon chlorine bleach to 1 cup water is effective for removing ink spots; rinse thoroughly.
For general cleaning, use an all-purpose household cleaner or a paint cleaner from a hardware or paint store. Have ready a pail of clear water and two sponges or rags. (On white paint use white rags or sponges; colored ones may leave stains. Use rags, rather than sponges, on textured walls.) You will also need a step stool or ladder and rubber gloves.
Before beginning, test the cleaning solution on an inconspicuous part of the wall. Work from the bottom up. Start in one corner and work across the base of the wall. Clean an area no more than 3 feet square, then rinse it with clear water and a clean sponge or rag. (On painted wood, also diy each area before continuing. )Change wash and rinse waters when they become dirty.
Many washable wallpapers can be cleaned by essentially the same method, using lukewarm-never hot-water and carefully drying each section of wall after rinsing to avoid water spots. Check the manufacturer’s instructions and test your cleaner on an inconspicuous part of the wall.