Commercial Decking: How to Clean Your Wood Deck with a Power Washer

If you have a wood deck around your commercial property, you might be wondering how to get it clean. While regular sweeping and rinsing it with a garden hose is good for short-term cleaning, you may end up with stains from oil and debris that needs something a little more powerful. This is where the pressure washer comes in. A pressure washer, also called a power washer, uses a high amount of pressure that helps get the wood clean. Here are some tips for using this type of washer for your wood deck.

Choose Your Power Washer and Tip

One important thing to keep in mind is that if you choose the wrong type of power washer or use the incorrect tip, it could damage your wood deck. While this is a great way to get the deck clean, be sure you are selecting the right one. Power washers are very versatile, so you can purchase one washer and get different tips for various cleaning projects. You want to have the lowest pressure possible for your power washer, so that is something to keep in mind when choosing the right washer.

For the tips, the fan tip is preferred for wood decks, though you can also use a rotating tip if this is all you can find. Test the washer on a small area of the deck first before you attempt to clean the entire deck with the washer.

Scrub before Washing

Before you start using the power washer, give the deck a quick rinse with a regular hose. Once the deck is wet, you can start scrubbing it with a stiff bristle brush. This type of brush will allow you to remove a good amount of debris and loosen up stains so that the power washer can help remove them. Use the brush on all obvious stains you see. Using a cleaning solution may not be required, but if you decide to use one, be sure it is meant for wood surfaces.

Use the Right Technique

When you are using a power washer on a wood deck, always start with the lowest pressure that washer can use, and only gradually increase it as needed. If you set it to the lowest pressure and it isn't cleaning the deck, you can put it up slowly to the next notch. However, don't put it on full blast unless the lower pressures are not working. Pull the trigger of the power washer while standing a couple feet from the deck, slowly lowering it to the surface of the deck.

Use a sweeping motion when washing wood with this type of washer. Move your arm back and forth instead of pivoting it in order for the washing to be effective. Start from the area of the deck closest to your building, then move outward from there. You also want to work with the grain of the wood. For assistance, talk to a professional like Best Choice Pressure Cleaning and Landscaping.


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