The pressure will simply blast and wash the grease away. This means that hot water pressure washers are perfect for cleaning garages where the floors are almost certainly covered in grease and oil from the car. It will also do a great job in cleaning the grime and grease on your patio s floor left behind by your barbecue grill. Just remember to spray the deck with the nozzle remaining a constant 12 to 14 inches away from the deck. Holding the nozzle too close will result in damaging the wood deck because of the high pressure. After washing the entire deck, the next step is to let it dry for 48 hours. Lastly, you can apply a stain or sealer and allow it to fully drive. But, the idea of swabbing your wood deck with a mop and bucket is hardly appealing. Besides, who would want to spend a lot of time doing this type of hard work? This is why you have to get yourself a pressure washer. This will make the job of cleaning easier for you and it will also save you a lot of time and money. And, the best thing about green chemicals is that they are safe and are non-toxic. They are also eco-friendly. And, when used with a pressure washer, green degreasing chemicals will surely get the job done. It is not advisable to use cold water pressure washers. Doing so will eventually transform the greasy deposits in to hard and waxy clumps, which are far more difficult to clean off. 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. If you are just going to use the pressure washer for washing your car or cleaning down your patio s wood deck, then a pressure washer with a maximum of 1500psi would be right for you. However, if you are going to use the pressure washer for heavy duty cleaning and extensive household cleaning tasks, a pressure washer with 2000psi should be perfect for your needs.