Is washing with water adequate for cleaning a surface to be painted?
Water alone will not remove most contaminants. To assure that you have a properly prepared surface use a mild detergent such as sugar soap or house hold bleach. Mix the cleaner according to label directions and apply to the surface. In some cases, such as severe chalking, it may be necessary to scrub the surface with a stiff brush before rinsing with water. For less severe cases, apply the detergent with a garden type sprayer and rinse thoroughly with a garden hose and nozzle or a 1500 PSI or less pressure washer.
