Wet & Forget Outdoor

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Dealing with stubborn outdoor stains caused by moss, mold, mildew, and algae can be a never-ending battle for homeowners. These unsightly blemishes not only mar the appearance of your outdoor surfaces but can also compromise their longevity and durability.

Finding a solution that effectively eliminates these stains without requiring constant scrubbing or pressure washing is a dream come true for many. In this review, we will explore a game-changing product that promises to revolutionize outdoor cleaning – Wet & Forget Outdoor Cleaner.

Our Pick

Wet & Forget Outdoor

Wet & Forget Ready To Use Outdoor Cleaner is a hassle-free solution to eliminate green and black stains from moss, mold, mildew, and algae on various surfaces. Its high-capacity trigger sprayer makes application easy. No scrubbing or rinsing is required; simply apply and let nature do the cleaning. Safe, bleach-free, and suitable for multiple surfaces. Enjoy a clean outdoor space for up to a year or longer.

Wet & Forget Outdoor Overview

Wet & Forget Outdoor Cleaner is a powerful solution for removing green and black stains caused by moss, mold, mildew, and algae. With no scrubbing, rinsing, or pressure washing required, this convenient cleaner can be applied and left to work its magic on various surfaces, including wood, concrete, vinyl, and more.

It is a bleach-free and non-acidic formula, making it safe for plants and landscaping. The easy-to-use concentrate can be mixed with water and sprayed on surfaces, providing a hassle-free cleaning experience. Let Wet & Forget Outdoor take the stress out of outdoor cleaning and keep your spaces looking fresh and clean for extended periods.

Wet & Forget Outdoor Features

1. Powerful Stain Removal

Wet & Forget Outdoor Cleaner is specially formulated to tackle tough stains caused by moss, mold, mildew, and algae. Its potent cleaning agents penetrate deep into the surface, effectively breaking down and removing unsightly green and black stains.

2. Hassle-Free Application

One of the standout features of this product is its simple and easy application process. Just mix 1 part Wet & Forget with 5 parts water in a garden sprayer, and you’re ready to go. No need for scrubbing, rinsing, or pressure washing. Simply spray the solution on the dry surface, and then let nature take its course.

3. Forget It and Leave It

As the name suggests, with Wet & Forget, you can apply it and then forget about it. The cleaning action takes place over time with the help of wind and rain. Green stains typically clean up within 1-2 weeks, while black stains or more stubborn marks may take several months to disappear. For long-established stains, patience may be required, with the cleaning process taking 6-12 months.

4. Versatile Usage

Wet & Forget Outdoor Cleaner is a multi-surface solution that works wonders on various outdoor areas. It can be safely used on driveways, patios, roofs, siding, decks, vinyl, wood, concrete, canvas, aluminum, and even upholstery. Its versatility makes it an excellent all-in-one outdoor cleaning product.

5. Safe and Non-Acidic

A key advantage of Wet & Forget is its bleach-free and non-acidic formula. When used as directed, it won’t harm your lawn, trees, shrubs, or landscaping. However, it’s essential to follow the instructions and take precautions while using the product around water sources and plants.

6. Long-lasting Results

Once the cleaning process is complete, the results are impressive and long-lasting. Surfaces can remain clean for up to 1 year or even longer, depending on weather conditions and the level of staining.

7. Ample Coverage

Each bottle of Wet & Forget Concentrate treats a significant area, making it cost-effective and suitable for larger cleaning projects. One bottle covers approximately 750 to 2,250 square feet, with heavy stained and porous surfaces absorbing more product for effective cleaning.

8. Convenient Storage and Reuse

Unused products can be stored mixed and ready in the sprayer for future applications. With an unlimited shelf life, you can be prepared for any outdoor cleaning needs that arise.

9. Eco-Friendly and Plant-Friendly

Wet & Forget is designed with environmental considerations in mind. It can be used without the fear of harming the surrounding vegetation, making it an eco-friendly outdoor cleaning solution.

10. Preparing Surfaces for Other Projects

Beyond its stain-removing capabilities, Wet & Forget can also be used as a surface preparation cleaner. It’s ideal for cleaning and preparing wood surfaces before painting or applying sealants, ensuring a smooth and well-prepared surface for your next outdoor project.

fence advise editor’s choice

Wet & Forget Outdoor

Pros & Cons


Wet & Forget Concentrate Outdoor Cleaner stands out for its exceptional stain removal capabilities. It effortlessly tackles green and black stains caused by moss, mold, mildew, and algae on various outdoor surfaces. Its powerful formula eliminates the need for tedious scrubbing or rinsing, making cleaning a breeze.

The ease of application is another commendable feature of this product. By simply mixing one part Wet & Forget with five parts water in a garden sprayer and spraying the dry surface, users can efficiently clean without the hassle of pressure washing. This user-friendly process saves valuable time and effort.

One of the most appealing aspects of Wet & Forget is its ability to deliver long-lasting results. The cleaner’s action works gradually with the wind and rain, ensuring surfaces stay clean for extended periods. This extended effectiveness means less frequent cleaning, offering convenience and peace of mind to homeowners.

The versatility of Wet & Forget makes it a practical and all-encompassing solution. It proves equally effective on driveways, patios, roofs, siding, decks, vinyl, wood, concrete, canvas, aluminum, and even upholstery. Its adaptability eliminates the need for multiple cleaners, streamlining the cleaning process.


Despite its remarkable stain removal capabilities, users need to be patient with Wet & Forget. Its cleaning action takes time, particularly for stubborn stains. Those expecting immediate results may find this aspect challenging and should be prepared to allow the product to work gradually.

Wet & Forget’s effectiveness is also dependent on weather conditions. Rain and wind play a vital role in activating the cleaning process. Consequently, areas with infrequent rainfall or during colder seasons might experience delayed results, necessitating strategic timing for optimal cleaning.

While Wet & Forget is generally safe when used as directed, handling precautions are essential. Users must follow instructions diligently, especially when spraying near water bodies and plants. Proper precautions ensure the cleaner’s eco-friendly nature is maintained and prevent any potential harm.

For those seeking instantaneous stain removal, Wet & Forget may not be the ideal choice. It is designed for gradual cleaning over weeks or even months, which may not suit urgent or time-sensitive cleaning needs.

How to Use Wet and Forget Outdoor?

Using Wet & Forget Concentrate Outdoor Cleaner is a straightforward process that requires minimal effort. Here’s a detailed step-by-step guide on how to use it effectively:

Step 1: Preparation

Before starting, ensure that the weather conditions are suitable for applying the product. Choose a cool day with temperatures above 32°F (0°C) to avoid rapid evaporation of the cleaner. Also, check the weather forecast to ensure no rain is expected within the next 4-5 hours after application.

Step 2: Dilution

Mix the Wet and forget Concentrate with water in the recommended ratio. The standard dilution is 1 part of the concentrate to 5 parts of water. For example, for every gallon of concentrate, you’ll need to mix it with 5 gallons of water. You can adjust the ratio depending on the severity of the stains and the surface you’re treating. You can use a garden sprayer or a pump-up sprayer for mixing and application.

Step 3: Spraying

With the diluted mixture in the garden sprayer, begin applying the Wet & Forget to the surface you want to clean. Thoroughly saturate the area affected by stains, ensuring complete coverage. The cleaner can be applied to various outdoor surfaces, including decks, fences, roofs, patios, siding, and more. It is safe to use on wood, concrete, vinyl, brick, and other materials.

Step 4: No Rinsing or Scrubbing

One of the significant advantages of Wet & Forget is that there’s no need to scrub or rinse the surface after application. Once you’ve sprayed the product, you can simply let it do its job. The cleaner’s powerful formula will start breaking down and eliminating green and black stains caused by moss, mold, mildew, and algae over time.

Step 5: Allow Time for Cleaning

Wet & Forget’s cleaning action is gradual and ongoing. Green stains typically clean up within 1-2 weeks, while black stains or heavy, stubborn stains may take several months to disappear completely. Long-established stains might require 6-12 months of treatment. Be patient and allow the cleaner to work its magic over time.

Step 6: Weather-Activated Cleaning

Wet & Forget’s cleaning process is activated by the wind and rain. The cleaner remains active on the surface, ensuring it continues to work even after initial application. Rain helps rinse away the loosened dirt and stains, while wind helps spread the cleaning agents over a broader area.

Step 7: Safety Precautions

While Wet & Forget is bleach-free and non-acidic, it’s essential to exercise some precautions. When spraying the cleaner, keep it approximately 100 feet away from lakes, ponds, rivers, and streams to prevent any harm to aquatic life. Before and after application, flush nearby plants with water to ensure they’re not affected by the cleaning solution.


Wet & Forget Concentrate Outdoor Cleaner proves to be a remarkable solution for tackling green and black stains caused by moss, mold, mildew, and algae on various outdoor surfaces. Its ease of use, no-rinse, and no-scrub formula make it a time-saving and hassle-free option for homeowners looking to maintain the pristine appearance of their decks, fences, roofs, patios, and more.

The gradual, weather-activated cleaning process ensures that stains are efficiently eliminated over time, providing long-lasting results. While it may take some patience for stubborn stains to disappear completely, the product’s effectiveness and versatility make it a valuable addition to any outdoor cleaning routine. With Wet & Forget, homeowners can confidently “wet it and forget it,” knowing that their outdoor spaces will stay clean and revitalized with minimal effort.


Can you use Wet & Forget Outdoor?

Yes, Wet & Forget Concentrate Outdoor Cleaner is specifically designed for outdoor use. It effectively removes green and black stains caused by moss, mold, mildew, and algae on various outdoor surfaces.

How Long Should Wet and Forget be Applied Before Rain?

For optimal results, apply Wet & Forget on a dry surface when rain is not forecasted within the next 4-5 hours. This allows sufficient time for the product to be absorbed and start working without being washed away by rain.

Will Wet and Forget Clean Concrete?

Yes, Wet & Forget is suitable for cleaning concrete surfaces. It works on various materials, including wood, vinyl, concrete, aluminum, and more, making it versatile for outdoor cleaning tasks.

Can you use Wet & Forget in the Sun?

While Wet & Forget Concentrate is designed to be used on dry surfaces, it is recommended to apply the product on a cool day to avoid rapid evaporation. Applying it in direct sunlight might cause the product to dry too quickly, affecting its effectiveness.

Can you use Wet & Forget on Outdoor Rugs?

Wet & Forget is not specifically formulated for cleaning outdoor rugs. It is best used on hard surfaces like decks, roofs, siding, and other outdoor materials susceptible to green and black stains.

Can you use Wet and Forget on a Covered Porch?

Yes, Wet & Forget can be used on a covered porch or any other outdoor surface that is prone to moss, mold, mildew, or algae stains. Its no-rinse and no-scrub formula simplifies the cleaning process, even in covered areas.

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