You may also want to remove your grill from the area you need to clean as well as all the plants. The windows as well as light fixtures should also be covered with tarp. Now that you prepared the area for cleaning with pressure washer, the next step is to start the pressure washer can blast away the dirt, grease, and grime. You know that cleaning these mentioned places are hard, which is why you have to consider an easier alternative that will save you time and effort. So, what s the most efficient way to clean greasy garage and patio floors or remove hard-to-remove molds on your house s walls? Well for this, you might want to consider getting a pressure washer. So, the first thing that you have to do when buying a pressure washer is to determine how you will use the equipment. This will help you choose the right pressure washer for the cleaning applications you have to do. For this, you have to determine the pressure. Water pressure is an important variable that you need to consider when choosing a pressure washer. A loose nozzle can become a projectile, which can eventually damage property or even injure people. For example, imagine washing your car with the pressure washer. The nozzle was loose and it flew off the wand hitting your windshield. This is really not a pretty sight so always make sure that the connections are tight and secure. The Perfect Pressure Washer for Auto Detailing Jobs If you want to start an auto detailing business, you have to remember that auto detailing is basically the process of cleaning the exterior and the interior of a vehicle. There are quite a lot of cleaning machines used in the process of auto detailing. The amount of PSI you should get for a pressure washer should at least be 2000PSI. This will ensure that the force will be strong enough to loosen dirt. You should also get a pressure washer that expels water for at least 2 gallons per minute or GPL. These are the things that you should look for in a pressure washer when you are planning to clean the exterior of your house.