How To Power Wash A Deck

How to Power Wash a Deck: A Complete Guide for Sparkling Results

Power washing your deck is a fantastic way to revitalize its appearance and extend its lifespan. A grimy, moldy deck can look drab and feel uninviting, but with the right approach and equipment, you can transform it into a beautiful outdoor space. This guide will walk you through the process, ensuring you achieve professional-looking results without damaging your deck. This includes choosing the right equipment, preparing the deck, the washing process itself, and finally, post-cleaning care.

Choosing the Right Equipment

Before you even think about spraying, you need the right tools. The most important is, of course, a pressure washer. Consider the size of your deck when choosing the PSI (pounds per square inch) and GPM (gallons per minute). For a standard-sized deck, a pressure washer with 2000 PSI and 2.5 GPM should be sufficient. Too much pressure can damage the wood, while too little won't effectively clean it.

Beyond the pressure washer itself, you'll need:

• A variety of nozzles: Different nozzles provide different spray patterns. A 25-degree nozzle is generally best for cleaning decks, offering a concentrated but manageable spray. You might also want a 40-degree nozzle for broader areas or a fan nozzle for rinsing.
• Cleaning solution: A deck cleaning solution, either store-bought or homemade (a mixture of water and oxygen bleach is a popular choice), is crucial for lifting dirt, grime, and mildew.
• Safety gear: This is paramount! Always wear safety glasses, gloves, and closed-toe shoes to protect yourself from debris and chemicals. Consider a face mask as well, especially if using harsh chemicals.
• Extension cord (if needed): Ensure your pressure washer has enough reach; you might need an extension cord for larger decks.

Preparing Your Deck for Power Washing

Thorough preparation is key to a successful cleaning. This will prevent damage and ensure even cleaning:

• Clear the deck: Remove all furniture, plants, and other objects from the deck's surface.
• Sweep or blow away loose debris: Use a broom or leaf blower to remove loose dirt, leaves, and other debris. This prevents clogging the pressure washer.
• Inspect for loose boards or nails: Identify and repair any loose boards or protruding nails before washing to prevent damage.
• Pre-treat stubborn stains: For heavily stained areas, apply a deck cleaner and allow it to dwell according to the product instructions before power washing.

The Power Washing Process: Step-by-Step

Now for the main event! Remember to always test your pressure washer on a small, inconspicuous area first to ensure you're using the correct pressure and nozzle.

1. Mix your cleaning solution: Follow the instructions on your chosen cleaning solution.
2. Apply the solution: Use a garden sprayer or a pump sprayer to apply the cleaning solution evenly across the deck. Allow the solution to dwell for the recommended time (usually 10-15 minutes).
3. Begin power washing: Start at the furthest point from your water source and work your way back. Use overlapping strokes, maintaining a consistent distance from the surface.
4. Rinse thoroughly: Once you’ve cleaned a section, rinse it thoroughly with clean water.
5. Inspect your work: Check for any missed spots and reapply cleaner and repeat the process if necessary.

Post-Cleaning Care

Once your deck is sparkling clean, there's still some work to do!

• Allow to dry completely: Let your deck dry completely before applying any sealant or stain.
• Repair any damaged areas: Address any damaged wood or loose boards once the deck is completely dry.
• Apply sealant or stain (optional): Applying a sealant or stain will protect your deck from future weathering and enhance its beauty.

By following these steps, you can achieve a beautifully clean deck that will last for years to come. Remember safety first, and enjoy the satisfaction of a job well done!