A pressure washer is a great tool for getting rid of stubborn dirt from the surface of your lawn. Harsh weather, such as winter snow and ice, can leave your turf appearing dull and lifeless, but a pressure washer has the power to get rid of this dirt with ease. A pressure washer also helps break down residues left behind after a year of natural wear and tear on your synthetic lawn. Just be sure to test the pressure on a small patch before applying it across the entire area to prevent damage.