When it comes to cleaning your plastic decking, one question that often arises is whether or not you can use a pressure washer. Plastic decking has become a popular choice for outdoor spaces due to its durability and low maintenance requirements. However, it can still accumulate dirt, grime, and mold over time, and many homeowners wonder if a pressure washer is a safe and effective way to clean it.

The short answer is yes, you can pressure wash plastic decking, but there are some important things to keep in mind. First and foremost, it’s crucial to use the right pressure settings and techniques to avoid damaging the material. Plastic decking can be more delicate than other types of decking materials, such as wood or composite, so using too much pressure or the wrong nozzle can cause it to warp, crack, or even break.

When pressure washing your plastic decking, it’s recommended to start with the lowest pressure setting and gradually increase it if needed. Using a wide-angle or fan spray nozzle can also help distribute the pressure more evenly and reduce the risk of damage. It’s essential to keep the nozzle moving at all times and avoid focusing the stream in one spot for too long, as this can lead to discoloration or surface damage.

Advantages of Pressure Washing Plastic Decking

Pressure washing is a highly effective method for cleaning and maintaining plastic decking. Here are some advantages of pressure washing plastic decking:

  • Deep Cleansing: Pressure washing can penetrate the surface of the plastic decking, removing deep-seated dirt, grime, algae, and mold that may have accumulated over time.
  • Time-Saving: Pressure washing plastic decking is a fast and efficient way to clean a large area. It can save you valuable time, especially if you have a large deck.
  • Cost-Effective: Pressure washing is a cost-effective cleaning method. It eliminates the need for expensive cleaning solutions and manual scrubbing.
  • Environmentally Friendly: Pressure washing uses water and pressure to clean the plastic decking, making it an environmentally friendly cleaning option. It does not require the use of harsh chemicals that can harm the environment.
  • Prevents Future Damage: Regular pressure washing can help prevent future damage to the plastic decking. By removing dirt and debris, it reduces the risk of mold growth, staining, and deterioration.
  • Enhances the Appearance: Pressure washing can restore the original look of your plastic decking, making it look cleaner and more appealing.
  • Increases Longevity: By keeping your plastic decking clean and free from dirt, mold, and algae, pressure washing can help extend its lifespan.

While pressure washing is a suitable cleaning method for plastic decking, it is important to use the right techniques and equipment to avoid damaging the surface. It is recommended to follow the manufacturer’s guidelines and seek professional advice if needed.

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Considerations Before Pressure Washing Plastic Decking

While pressure washing can be an effective cleaning method for many outdoor surfaces, it’s important to consider a few things before attempting to pressure wash plastic decking.

1. Manufacturer’s Recommendations:

Before using a pressure washer on your plastic decking, check the manufacturer’s recommendations and guidelines. Some manufacturers may have specific instructions on how to clean and care for their decking. Following these guidelines will help prevent any damage to the material.

2. Water Pressure:

Plastic decking is not as durable as other materials like wood or metal, so it’s important to use a lower water pressure setting on your pressure washer. Too much pressure can cause the plastic decking to crack, warp, or break. Start with a lower setting and gradually increase the pressure if needed.

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3. Cleaning Products:

While pressure washing alone can remove dirt and grime from plastic decking, you may need to use a mild cleaning solution or detergent for tougher stains. However, it’s essential to use a cleaning product that is recommended for use on plastic and safe for the environment. Avoid using harsh chemicals that may cause discoloration or damage to the decking.

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4. Technique:

The right technique is crucial when pressure washing plastic decking. Avoid holding the pressure washer nozzle too close to the surface, as it can cause damage. Instead, maintain a distance of at least 12 inches and move the nozzle in a sweeping motion. This will help distribute the pressure evenly and prevent any concentrated damage.

5. Protective Measures:

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Before pressure washing, take the necessary precautions to protect nearby plants, furniture, and other sensitive areas. Cover or move any items that may be affected by water spray or cleaning chemicals. It is also a good idea to wear protective gear, such as gloves and safety goggles, to prevent any injuries.

Conclusion:

Pressure washing can be a useful method for cleaning plastic decking, but it requires careful consideration. Always follow the manufacturer’s guidelines, adjust the water pressure accordingly, use appropriate cleaning products, apply the correct technique, and take necessary protective measures. By doing so, you can effectively clean your plastic decking without causing any damage.

Steps to Pressure Wash Plastic Decking

Pressure washing is an effective method to clean and maintain plastic decking. By removing built-up dirt, grime, and mold, pressure washing helps to restore the appearance and longevity of your plastic deck. Follow these steps to pressure wash your plastic decking:

1. Preparation

Before you begin pressure washing, make sure to clear the deck of any furniture, decorations, or plants. Sweep away any loose debris, such as leaves or dirt, to prevent them from clogging the pressure washer.

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2. Adjust the Pressure Washer

Set the pressure washer to a low or medium setting to prevent damage to the plastic decking. High pressure can cause the plastic to warp or crack, so it is important to start with a lower pressure setting and increase if necessary.

3. Apply Detergent

Apply a deck cleaning detergent specifically formulated for plastic decking. Follow the instructions on the detergent label and mix it with water in the pressure washer’s detergent tank. Allow the detergent to sit on the deck for a few minutes to loosen dirt and grime.

4. Start Pressure Washing

Begin pressure washing the plastic decking, starting from one end and working your way to the opposite end. Hold the pressure washer nozzle at a consistent distance from the deck surface to ensure even cleaning. Move in a sweeping motion, overlapping each pass to avoid streaks or missed areas.

5. Rinse Thoroughly

After pressure washing, rinse the plastic decking thoroughly with clean water. This will remove any remaining detergent and debris. Make sure to remove all cleaning solution, as it can leave behind residue or a slippery surface.

6. Allow to Dry

Allow the plastic decking to dry completely before returning furniture and decorations to the deck. This will prevent any moisture from being trapped and potentially causing mold or mildew.

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Following these steps will help you effectively pressure wash your plastic decking, leaving it clean and ready to enjoy. Remember to exercise caution and start with a low pressure setting to avoid damaging the plastic surface.

Alternative Cleaning Methods for Plastic Decking

While pressure washing can be an effective way to clean plastic decking, there are alternative methods that can also achieve great results. These methods can be gentler on the decking material while still being able to remove dirt, grime, and other stains.

1. Scrubbing with a Soft Bristle Brush

One alternative method is to manually scrub the plastic decking using a soft bristle brush. This allows you to control the pressure and avoid any potential damage to the surface. Start by wetting the decking and then apply a mild detergent or a mixture of vinegar and water. Use the brush to scrub the surface in a circular motion, paying extra attention to stained areas. Rinse thoroughly with water when finished.

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2. Using a Non-Pressure Sprayer

Another option is to use a non-pressure sprayer, such as a garden sprayer or a pump sprayer. Fill the sprayer with a cleaning solution, such as a deck cleaner or a mild detergent, and evenly apply it to the plastic decking. Allow the cleaning solution to sit for a few minutes to loosen dirt and stains. Afterward, use a soft bristle brush or a mop to gently scrub the surface. Rinse off the cleaning solution thoroughly with water.

Avoid using harsh chemicals or abrasive scrubbing tools, as these can cause damage to the plastic decking. It’s always a good idea to test any cleaning solution or method on a small, inconspicuous area of the decking before applying it to the entire surface.

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Pros Cons
Can be gentler on the decking May require more time and effort compared to pressure washing
Less risk of damaging the surface May not be as effective in removing deep-set stains
No need for specialized equipment May not be suitable for large areas or heavily soiled decking

Overall, while pressure washing can be effective in cleaning plastic decking, alternative methods such as scrubbing with a soft bristle brush or using a non-pressure sprayer can be more practical and safer options to consider.

Maintenance Tips for Plastic Decking

Plastic decking is a durable and low-maintenance option for outdoor spaces. To keep your plastic decking looking its best and prolong its lifespan, regular maintenance is important. Here are some maintenance tips to help you take care of your plastic decking:

1. Regular Cleaning

Regular cleaning is essential to prevent dirt, grime, and stains from accumulating on your plastic decking. Use a mild detergent mixed with water and a soft-bristle brush to scrub the surface of the decking. Avoid using abrasive cleaners or brushes that can scratch or damage the plastic. Rinse thoroughly with water after cleaning.

2. Preventing Mold and Mildew Growth

Mold and mildew can be a common issue in damp and shady areas. To prevent mold and mildew growth on your plastic decking, regularly sweep away leaves, debris, and standing water. If you notice any mold or mildew stains, use a mixture of one part bleach to four parts water and gently scrub the affected areas. Rinse well with water after cleaning.

3. Handling Stains

If you encounter stubborn stains on your plastic decking, such as oil or grease stains, it’s important to act quickly. Use a mild household cleaner or a specialized plastic decking cleaner to spot clean the stain. Gently scrub the area with a soft brush and rinse with water. Avoid using harsh chemicals or abrasive cleaning tools that can damage the plastic.

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4. Avoiding Scratches

To prevent scratches on your plastic decking, avoid dragging heavy furniture or sharp objects across the surface. Use furniture pads or protective mats underneath any furniture to distribute the weight and prevent indentations. Be careful when using grill mats or rugs, as they can retain moisture and cause discoloration if left in place for extended periods.

5. Protecting from Sun Damage

Excessive exposure to the sun can cause plastic decking to fade and become brittle over time. To protect your plastic decking from sun damage, consider using a UV-protective coating or applying a sealant. Additionally, consider using outdoor rugs or furniture covers to provide additional shade and protection against UV rays.

By following these maintenance tips, you can ensure that your plastic decking remains in good condition and retains its aesthetic appeal for years to come.

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Frequently Asked Questions about Pressure Washing Plastic Decking

As an owner of a plastic decking, you may have some questions regarding pressure washing. Here are some frequently asked questions and their answers:

  1. Is it safe to pressure wash plastic decking?

    Yes, it is safe to pressure wash plastic decking if done correctly. Make sure to use a pressure washer with a low-pressure setting, around 1,500 to 2,000 PSI, and a wide-angle spray tip to minimize any potential damage.

  2. How often should I pressure wash my plastic decking?

    The frequency of pressure washing will depend on the condition and use of your plastic decking. In general, it is recommended to pressure wash at least once a year to remove dirt, grime, and other debris that may accumulate.

  3. Can pressure washing remove stains from plastic decking?

    Pressure washing can help remove some stains from plastic decking, especially those caused by dirt, mildew, or algae. However, tougher stains like oil or grease may require additional cleaning methods or specialized cleaning agents.

  4. Do I need to use detergent or cleaning agents when pressure washing plastic decking?

    In most cases, using detergent or cleaning agents is not necessary when pressure washing plastic decking. Water alone should be able to remove most dirt and grime. However, if you encounter stubborn stains, you may consider using a mild soap or specialized plastic decking cleaner.

  5. Are there any precautions I should take when pressure washing plastic decking?

    When pressure washing plastic decking, it is important to avoid using high-pressure settings, as it may cause damage. Additionally, keep the spray nozzle at a safe distance from the decking surface and any nearby objects or furniture to prevent accidental damage.

  6. Can pressure washing void the warranty of my plastic decking?

    It is recommended to check the manufacturer’s warranty or guidelines before pressure washing your plastic decking. Some manufacturers may have specific instructions or limitations when it comes to cleaning methods, including pressure washing, which could void the warranty if not followed.

By following these guidelines and taking proper precautions, you can safely pressure wash your plastic decking and keep it looking clean and well-maintained.

Questions and answers

Can I use a pressure washer on my plastic decking?

Yes, you can use a pressure washer on plastic decking, but you need to be cautious and follow some guidelines to avoid damaging the surface.

What precautions should I take when pressure washing plastic decking?

When pressure washing plastic decking, it is important to use a low-pressure setting to prevent any damage. Additionally, keep the nozzle at least 12 inches away from the surface and avoid using a narrow tip that could focus the pressure on one spot.

What cleaning solution should I use when pressure washing plastic decking?

When pressure washing plastic decking, it is recommended to use a mild soap or a specific plastic decking cleaner. Avoid using harsh chemicals or bleach as they can damage the surface.

Is it necessary to remove furniture and plants from the deck before pressure washing?

If possible, it is best to remove furniture and plants from the deck before pressure washing to prevent any damage or contamination. If removing them is not feasible, cover them with plastic sheeting or tarps to protect them from the cleaning solution and water.

How often should I pressure wash my plastic decking?

The frequency of pressure washing your plastic decking depends on various factors such as climate, usage, and the amount of dirt and debris it accumulates. In general, it is recommended to pressure wash the deck once or twice a year to keep it clean and in good condition.