If you own a pressure washer, you know how effective it can be in cleaning a variety of surfaces, from driveways to decks. But what if you’re dealing with a stubborn mildew problem? Luckily, there’s a solution – adding mildew remover to your pressure washer. By doing so, you can tackle mildew growth and prevent it from coming back in the future.

Step 1: Choose the Right Mildew Remover

Before you start adding mildew remover to your pressure washer, it’s important to choose the right product. Look for a mildew remover that is specifically designed for use with pressure washers. These products are typically formulated to work with the high pressure and water flow of a pressure washer, ensuring maximum effectiveness.

Tip: Read customer reviews and product labels to find a mildew remover that is safe for the surfaces you’ll be cleaning.

Step 2: Prepare Your Pressure Washer

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Once you have selected a mildew remover, it’s time to prepare your pressure washer. Start by filling the detergent reservoir with the recommended amount of mildew remover. Be sure to follow the manufacturer’s instructions for the proper dilution ratio.

Tip: If your pressure washer does not have a built-in detergent reservoir, you can use a separate detergent attachment or apply the mildew remover directly to the surface you’re cleaning.

Step 3: Start Pressure Washing

With the mildew remover added to your pressure washer, you’re ready to start cleaning. Begin by spraying the affected area with the mildew remover solution, making sure to cover the entire surface evenly. Allow the solution to sit for the recommended amount of time, as specified by the product instructions.

Tip: For tougher mildew stains, you may need to scrub the surface with a brush or use a rotating brush attachment on your pressure washer.

Step 4: Rinse Thoroughly

After the recommended time has passed, rinse the surface thoroughly with clean water using the pressure washer. Make sure to remove all traces of the mildew remover, as leaving any residue behind could cause damage to the surface or affect any future cleaning treatments.

Tip: If you’re cleaning a particularly stubborn mildew problem, you may need to repeat the process or use a stronger concentration of mildew remover.

By following these steps and adding mildew remover to your pressure washer, you can effectively remove mildew and keep your outdoor surfaces looking clean and fresh. Remember to always consult the manufacturer’s instructions and take proper safety precautions when using a pressure washer.

The Importance of Removing Mildew from Surfaces

Mildew is a type of fungus that thrives in damp and humid conditions. It can grow on various surfaces, such as walls, roofs, decks, and driveways. While mildew may not seem like a significant problem at first, it can cause various issues if left untreated.

1. Health Risks

Mildew produces spores that can be inhaled, leading to respiratory problems, allergies, and other health issues. People with asthma or compromised immune systems are especially susceptible to these health risks. Removing mildew from surfaces helps to create a healthier environment for everyone.

2. Structural Damage

If mildew is left to grow on surfaces for an extended period, it can cause structural damage. The fungus can break down the materials it grows on, leading to weakened structures. This can result in costly repairs and compromises the integrity of the surfaces.

Regularly removing mildew from surfaces can help preserve their strength and durability, extending their lifespan.

3. Aesthetic Appearance

Mildew stains can be unsightly and diminish the overall appearance of surfaces. Whether it’s a greenish discoloration on a deck or black spots on a wall, mildew can make surfaces look dirty and unkempt. By regularly removing mildew, you can restore the aesthetic appeal of these surfaces and enhance the overall appearance of your property.

Using Mildew Remover with a Pressure Washer

One effective way to remove mildew from surfaces is by using a pressure washer along with a mildew remover solution. The powerful stream of water from the pressure washer helps to dislodge the mildew, while the mildew remover actively kills and eliminates the fungus.

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When using a pressure washer, it’s essential to follow all safety precautions and instructions provided by the manufacturer. Additionally, be sure to choose a mildew remover that is compatible with pressure washers and suitable for the surface you are cleaning.

Steps to Remove Mildew with a Pressure Washer:
1. Dilute the mildew remover solution according to the instructions.
2. Apply the diluted solution to the affected areas.
3. Allow the solution to sit for the recommended amount of time.
4. Set up the pressure washer and adjust the nozzle to a suitable pressure.
5. Start from the top and work your way down, using a sweeping motion to remove the mildew.
6. Rinse the surface thoroughly after removing the mildew.
7. Dispose of the wastewater and cleaning solution properly.

By understanding the importance of removing mildew from surfaces and following proper techniques, you can effectively maintain a clean and healthy environment. Incorporating a mildew remover solution with a pressure washer can make the cleaning process more efficient and ensure long-lasting results.

Step 1: Preparation

Before adding mildew remover to your pressure washer, it is important to properly prepare for the task. Follow these steps:

  1. Start by wearing appropriate protective gear, such as goggles, gloves, and a face mask. This will help protect you from any chemicals and prevent any potential injuries.
  2. Clean the surface that you will be treating with the pressure washer. Remove any loose dirt or debris using a broom, brush, or leaf blower.
  3. Inspect the area for any signs of mildew growth. Look for black or green spots, which are indicators of mildew infestation.
  4. If there is heavy mildew growth, it is recommended to pre-treat the area using a de-greaser or mold and mildew cleaner. This will help loosen and remove the mildew before pressure washing.
  5. Prepare the pressure washer by checking the oil levels and fuel levels, if applicable. Make sure the pressure washer is in good working condition before proceeding.

By properly preparing for the task, you will ensure that the mildew remover is applied effectively and that the pressure washer performs optimally.

Gather the necessary materials and tools

Before you can add mildew remover to your pressure washer, you will need to gather the following materials and tools:

  • A pressure washer
  • Mildew remover solution
  • A bucket or container
  • A mixing stick or spoon
  • Protective gloves
  • Safety glasses
  • A hose
  • A spray nozzle or attachment

Make sure you have all of these items on hand before you begin the process of adding mildew remover to your pressure washer. This will help ensure that you have everything you need to complete the task safely and effectively.

Protect yourself and the surrounding area

Before using any chemicals or pressure washing equipment, it’s important to take safety precautions to protect yourself and the surrounding area.

1. Wear protective clothing: Always wear safety goggles, gloves, long sleeves, and pants to protect your skin from any potential splashes or injuries.

2. Use a drop cloth: Place a drop cloth or tarp around the area you’ll be pressure washing to catch any loose debris or chemicals that may fall or splatter.

3. Ventilate the area: Make sure you’re working in a well-ventilated area to avoid inhaling any chemical fumes or airborne particles.

4. Keep pets and children away: It’s important to keep pets and children away from the work area to prevent any accidents or exposure to chemicals.

5. Follow instructions: Read and follow the instructions provided by the mildew remover manufacturer for proper usage and safety precautions.

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6. Test a small area first: Before applying the mildew remover to the entire surface, test it on a small, inconspicuous area to ensure it doesn’t damage or discolor the surface.

7. Rinse thoroughly: After applying the mildew remover and pressure washing, make sure to rinse the area thoroughly with clean water to remove any remaining chemicals.

By taking these precautions, you can protect yourself and the surrounding area while effectively removing mildew with a pressure washer.

Step 2: Mixing the mildew remover

Once you have chosen a mildew remover that is safe to use with your pressure washer, it’s time to mix it properly for effective cleaning. Follow these steps to ensure you get the right mixture:

1. Read the instructions: Before starting, carefully read the instructions provided with the mildew remover. This will give you information on the proper ratio of water to mildew remover that you should use.

2. Gather the necessary supplies: Make sure you have all the supplies you need to mix the mildew remover. This typically includes a bucket or mixing container, water, measuring cup, and the mildew remover itself.

3. Measure the mildew remover: Use a measuring cup to accurately measure the mildew remover according to the instructions. Be sure to pour it into the mixing container or bucket.

4. Add the water: Once you have measured the proper amount of mildew remover, fill the mixing container or bucket with the appropriate amount of water. This is usually specified in the instructions.

5. Mix thoroughly: Use a stirring stick or spoon to mix the mildew remover and water together until they are well combined. Make sure there are no clumps or undissolved portions of the mixture.

6. Let it sit: Allow the mixture to sit for a few minutes to ensure it is fully dissolved and mixed. This will also give the mildew remover time to activate its cleaning properties.

Note: It’s important to always follow the instructions provided by the manufacturer of the mildew remover to ensure proper mixing and use.

Follow the instructions on the product label

It’s important to carefully read and follow the instructions on the product label when adding mildew remover to your pressure washer. Each brand and product may have slightly different instructions, so it’s crucial to familiarize yourself with the specific guidelines for the product you’re using. By following the instructions, you can ensure that the mildew remover is applied correctly and safely.

Typically, the instructions will include information on the recommended dilution ratio, which is the ratio of the mildew remover to water that should be used. This ratio is important to get right, as using too little or too much of the product can affect its effectiveness and may even damage the surfaces you’re trying to clean.

The label may also mention any safety precautions that should be taken when using the mildew remover, such as wearing protective clothing or gloves. It’s important to follow these precautions to minimize the risk of any potential harm.

Additionally, the label might provide guidance on the application method and the amount of time the mildew remover should sit on the surface before rinsing. Some products may require scrubbing or agitation, while others may recommend letting the product sit for a certain period before rinsing it off.

By carefully reading and following the instructions on the product label, you can ensure that you’re using the mildew remover properly and achieving the best results. Don’t hesitate to reach out to the manufacturer or refer to their website if you have any questions or need further clarification on how to add the mildew remover to your pressure washer.

Ensure proper dilution for the pressure washer

When adding mildew remover to a pressure washer, it is crucial to ensure proper dilution. Using a concentrated formula directly in the pressure washer can damage the machine and result in ineffective cleaning.

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Most mildew removers come with specific instructions on how to dilute the product for use in a pressure washer. Follow these instructions carefully to achieve the best results.

Typically, dilution ratios are provided in terms of parts cleaner to water. For example, a common dilution ratio might be 1 part mildew remover to 10 parts water. This means that for every gallon of mildew remover, you would add 10 gallons of water.

To ensure the proper dilution, use measuring cups or containers to accurately measure the amount of mildew remover and water. It is essential to maintain the recommended ratio to maximize the effectiveness of the cleaner and protect your pressure washer.

Remember to always add the mildew remover to the water and not the other way around. This ensures proper mixing and helps prevent any potential chemical reactions.

Once you have measured the appropriate amounts of mildew remover and water, carefully pour them into the pressure washer’s detergent tank. Be mindful not to spill or overfill, as this can cause clogs or damage to the machine.

Finally, before starting the pressure washer, give the detergent tank a gentle shake or stir to further mix the mildew remover and water. This step ensures even distribution of the cleaner throughout the cleaning process.

Following these steps will help you properly dilute the mildew remover for use in your pressure washer, ensuring effective cleaning and preventing any potential damage to your equipment.


What is mildew and why is it harmful?

Mildew is a type of mold that grows in damp and humid environments. It can cause respiratory problems and allergies in humans and can also damage surfaces and materials.

Can mildew be removed with a pressure washer?

Yes, mildew can be effectively removed with a pressure washer. The high-pressure water stream helps to blast away the mildew and clean the surface it is growing on.

What is the best mildew remover to use with a pressure washer?

There are many mildew removers available in the market that are specifically designed to be used with pressure washers. It is best to choose a product that is safe for the surface you are cleaning and effective against mildew.

How should I add mildew remover to a pressure washer?

To add mildew remover to a pressure washer, you can either pour it directly into the detergent tank or mix it with water in a separate container and then pour it into the detergent tank. The exact instructions will vary depending on the specific pressure washer model you are using, so it is best to consult the user manual.

Are there any safety precautions I should take when using mildew remover with a pressure washer?

Yes, when using mildew remover with a pressure washer, it is important to wear protective clothing such as gloves and goggles to avoid contact with the chemical. It is also recommended to work in a well-ventilated area and to follow the instructions and safety guidelines provided by the manufacturer of the mildew remover.

Can I add mildew remover to my pressure washer?

Yes, you can add mildew remover to your pressure washer. Follow the instructions on the mildew remover product and the pressure washer to ensure proper mixing and usage.

What is the best mildew remover to use with a pressure washer?

There are many different mildew remover products available on the market that can be used with a pressure washer. Some popular options include bleach-based cleaners, hydrogen peroxide-based cleaners, and oxygenated cleaners. It’s best to choose a mildew remover that is specifically designed for use with pressure washers and follow the manufacturer’s instructions for mixing and application.