Safety

• Power washers throw out water at such a high velocity that debris and dirt goes everywhere. Wear goggles for eye protection and durable, non-slip shoes. Do not wear flip-flops. It may be tempting to clean off your filthy feet when power washing with a sprayer, but the high-powered water jet will immediately flay the skin. Wear protective clothing for your legs and arms, especially when cleaning decking or concrete surfaces. Some individuals swear by raincoats to protect clothing and for easy clean up.
  
  Before turning on the power washer, tighten all connections securely. Only fill the gas tank when the motor isn't running. Make sure hoses don't touch hot motors since this can result in a hole in your power washer hose. Using a power washer with a ladder presents an extreme danger to the user since the force of the water can knock you off the ladder. Manufacturers sell extension arms to safely reach high places. Always use extreme caution when operating an electrical power washer to prevent shock.
  
  

Basics

• Power washers emit a strong stream of water to literally "power" off dirt and grime. This can result in streaking or gouging of many surfaces. Work in small 3-foot-square sections for patios and by-the-board when cleaning decking. Keep at least a 6- to 10-inch distance from the surface to prevent wood damage or loosening of concrete. Power wash in even strokes to prevent streaks. When cleaning walls or siding, work from the top down for best results. Never direct a power spray at a window to prevent breakage. Some siding manufacturers void warranties when homeowners use power washers to clean aluminum or vinyl siding.
  
  

Cleaning

• Many models of power washers have a convenient detergent feature on the machine. Hook up a bottle of appropriate cleanser and clean away. Cleaners work well to remove a long winter's accumulated gunk from lawn furniture or children's play sets and houses. Always test the spray in an inconspicuous area to gauge the potential for damage to the surface. Power washing allows you the option of cleaning patios, siding and furniture without harsh solvents, detergents or bleach.
  
  Some individuals use power washers for paint removal. This concept might seem great, but you'll very likely make a huge mess of paint flakes. Power washing works for cleaning, not paint removal. In addition, you'll still have to let the wooden surface dry for two to three days before painting.