With a pressure washer, you will be able to get rid of these stains as well as barnacles or any other contaminants that have attached on to your boat. You can also use pressure washers to clean the sidewalk. With this tool, you will be able to make your sidewalk look immaculately clean. Keep in mind that power washers are powerful tools. Well, basically you want your pressure washer to last for a long time. Conventional pressure washers that don t have an automatic shut down feature will keep on operating even if you take your hands off the trigger. This causes wear and tear on the pumps and its operational life will be shortened. On the other hand, you have the pressure washer with automatic shut down feature. Companies that manufacture pressure washers are now introducing new technologies as well as mechanical changes to their product. It is a lot more efficient in cleaning and it also has features that will make cleaning easier for you to do. So, what are the technologies included in new pressure washers? Run clear water through the system if you used cleaning chemicals to prevent corrosion inside the pump, trigger gun, and wand. Before stowing the pressure washer away, make sure that you should let the engine cool down first. These are the safety precautions that you need to remember whenever you operate a pressure washer. The grease or oil will tend to stick more to the concrete floor which makes it even harder to remove even with the pressure washer. On the other hand, if you use hot water or steam pressure washer, it will be able to effectively break down the grease and dirt. Hot water pressure washers are able to reach temperatures up to 210 degrees Fahrenheit while steam pressure washers will generate super heated steam up to 330 degrees Fahrenheit, which is a no-brainer on which on cleans better and more efficiently. 3 gallons per minute is recommended but you can always go for more. For the water pressure, it should be at least 2000 pounds per square inch or more. The pressure washer should also eject water at high temperatures. This can really help soften and loosen grease off your garage floor. If it is possible, go for pressure washers that eject super heated steam with temperatures going up to 330 degrees Fahrenheit.