Prepare the Work Area

• Pressure washers can be dangerous to people and damaging to property. Keep the washer away from doorways or windows, scraping those areas with wire brush instead. Clear the wall of any obstructions or foliage, and make sure there are no outdoor electrical outlets in your path. (If there are, don't use the pressure washer anywhere near them.) Make sure kids and pets aren't wandering around the area.
  
  

Set Up the Pressure Washer

• Rent a washer and tank rated at 3,000 pounds per square inch (p.s.i.) and a 15-degee angled nozzle. Don't deviate from those numbers; less pressure won't take the paint off effectively, and more pressure or a sharper angle could result in damage to the bricks. Hook up your garden hose to the tank as instructed.
  
  

Strip the Paint

• Start at the top of wall. Hold the tip of the nozzle about 1 foot from the wall at a very slight forward angle, and squeeze the trigger. Move the nozzle in a side-to-side motion, slowly, observing how the water affects the paint. It should immediately remove all loose paint. If it doesn't, then move the nozzle in a little closer and move it slower, and adjust the angle at which you're holding the nozzle. Watch for any sign that the water stream is damaging the brick, especially in the mortar lines. If so, pull the nozzle back a little. Continue until the whole wall is stripped.