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Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 64 Fluid Ounces

4.3 4.3 out of 5 stars 5,422 ratings

To see product details, add this item to your cart. You can always remove it later.
64 Fluid Ounces
Moss

Purchase options and add-ons

Brand Wet & Forget
Item Weight 4.4 Pounds
Liquid Volume 64 Fluid Ounces
Item Form Liquid
Coverage 375 - 1,125 square feet

About this item

  • Concentrate outdoor cleaner removes stains caused by moss, mold, mildew, and algae with no scrubbing or rinsing, just wet it and forget it for hard, sealed non-porous surface including driveway, patio, roof, siding, deck, vinyl, wood, sealed concrete, canvas, aluminum, and upholstery
  • Dilute 1 part Outdoor to 5 parts water, apply with a garden sprayer generously to a dry, debris-free surface in mild climate, do not rinse or apply when rain is expected 4-5 hours after application; unused solution can be stored in sprayer for next use
  • Cleans over time with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer
  • It is bleach free and non-acidic; spray 100 feet away from lakes, ponds, rivers, and streams and flush plants with water before and after application
  • One bottle treats 375 - 1,125 square feet, heavy stained and porous surfaces will absorb more product

Frequently bought together

$40.95 ($0.64/Fl Oz)
Get it as soon as Wednesday, Apr 3
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$20.64 ($0.32/Fl Oz)
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From the manufacturer

wet and forget outdoor
concentrate

FEATURES

Any Surface

coverage

no power washing

No scrubbing

Use Wet And Forget To Clean

fence

Deck

stone

stone

Hose End Hose Refill concentrate Concentrate Ready To Use
BUY BUY BUY BUY BUY
Customer Reviews
4.1 out of 5 stars
45
4.4 out of 5 stars
896
4.3 out of 5 stars
5,422
4.4 out of 5 stars
9,600
4.0 out of 5 stars
12,734
Application Method Hose Refill for Hose End Pump Sprayer Pump Sprayer Trigger Sprayer
Coverage Covers up to 2,000 sq ft Covers up to 2,000 sq ft Covers 375 - 1,125 sq ft Covers 750 - 2,250 sq ft Covers 60 - 180 sq ft
Where to use Safe for use on virtually any outdoor surface Safe for use on virtually any outdoor surface Safe for use on virtually any outdoor surface Safe for use on virtually any outdoor surface Safe for use on virtually any outdoor surface
What to expect Green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months. Green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months. Green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months. Green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months. Green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months.

Product Description

Wet & Forget Outdoor Cleaner Concentrate eliminates black and green stains caused by mold, mildew and algae stains without scrubbing, power washing or using bleach. Just mix 5 parts water with 1 part Wet & Forget in a pump up garden sprayer and apply to the surface - that's it! Wet & Forget goes to work with the wind and rain to gently clean the surface over time. Green stains clean up within a few days or weeks. Black stains generally clean up in 4-6 weeks. Black roof stains or stains that have been on the surface for many years can take up to 6 months to come clean. Be Patient, Good Things Take Time! Surfaces are properly cleaned so you get an extended clean. Surfaces stay clean up to 1 year or longer. Re-apply at the first sign of reoccurrence or annually. Use Wet & Forget on decks, siding, roofs, walkways, patios, sealed brick, sealed cement, or any hard, non-porous outdoor surface. Half-Gallon Concentrate makes 3-Gallons and covers 375-1, 125 sq. ft. depending upon severity of the stain and porosity of the surface.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6.5 x 3.25 x 9.25 inches; 4.35 Pounds
  • Item model number ‏ : ‎ E800003
  • Department ‏ : ‎ Biodegradable
  • Date First Available ‏ : ‎ September 27, 2008
  • Manufacturer ‏ : ‎ Wet & Forget USA
  • ASIN ‏ : ‎ B001GTRBMO
  • Customer Reviews:
    4.3 4.3 out of 5 stars 5,422 ratings

Product guides and documents

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Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 64 Fluid Ounces
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 64 Fluid Ounces
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Details
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Details
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Details
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Price$40.95-8% $54.77
Typical:$59.54
$18.98-7% $28.17
Typical:$30.30
Delivery
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Customer Ratings
Easy to use
4.3
5.0
4.1
3.4
Value for money
3.5
4.6
3.8
2.5
Style
3.7
5.0
3.0
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
liquid volume
64 fluid ounces
48 fluid ounces
27 fluid ounces
1 gallons
coverage
375 - 1,125 square feet
Up to 2,000 sq. ft.
2000 square feet
form
Liquid
Liquid
Spray
Liquid
weight
4.35 pounds
28.8 ounces

Important information

Ingredients

ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
5,422 global ratings

Customers say

Customers like the ease of use and performance of the weed moss control agent. They mention it's simple, easy to mix and apply, and produces excellent results. Customers are also happy with appearance. However, some customers feel the value of the product is poor and overpriced for the job it does. They disagree on color, and quality.

AI-generated from the text of customer reviews

641 customers mention450 positive191 negative

Customers like the performance of the weed moss control agent. For example, they say it works great, provides excellent results, and is pleased with its performance. Some say it's an economical way to get the mold and pollen off their roofs and decks. That said, some are happy with the product's performance.

"...I took some before and after pictures, and the results are dramatic. In fact, the longer you wait, the better it looks...." Read more

"Product is good overall but if you are looking for an immediate solution - pressure clean the porous bricks if HOA is giving you a tight deadline to..." Read more

"...I will be purchasing more of this product. It is NOT instant, but it works and is easy to apply with patience." Read more

"good product" Read more

124 customers mention113 positive11 negative

Customers find the weed moss control agent easy to use. They mention it works well, is simple to mix and apply, and is a DIY project. Customers also say it's safe to use attached to a hose and makes maintenance extremely easy.

"...It is NOT instant, but it works and is easy to apply with patience." Read more

"Easy to use" Read more

"...This is a very simply and easy product to use and although quite expensive,does a very nice ...." Read more

"...Easy to use, just mix it with water using ratios in directions in a pump sprayer and apply...." Read more

68 customers mention58 positive10 negative

Customers like the appearance of the weed moss control agent. They say it works well, and the product makes their surfaces look new. Some mention that it does a great job without affecting roof shingle color.

"...By next summer, they should look pretty darn good. Pick a calm day and do water any plants that get over-spray...." Read more

"...is that cleaning is much faster and when you are done, it actually looks clean...." Read more

"...The black gradually fades away things look so much better...." Read more

"...Now they look clean and like I just bought them. So don't worry if whatever you are trying to clean doesn't immediately improve...." Read more

37 customers mention28 positive9 negative

Customers like the safety of the weed moss control agent. They say it does not harm the plants, does not hurt the environment, and is non-toxic. Some customers also mention that it does no damage to pavers and bugs. Additionally, they say it is safe to use on fabrics and kills any grass it touches.

"...And my middle name is skeptic. It seems to be safe for screen fabric. Easy to apply with sprayer...." Read more

"...I only treated it once. It did not harm any of my plants. It doesn't have a strong smell.My only complaint is with the small sprayer...." Read more

"...No caustic bleach to deal with. I would recommend a reapplying it 1-2 months after the first round...." Read more

"...used within 100 feet of water and until it is dry, it is a potential hazard to animals. It takes four to five hours to dry...." Read more

18 customers mention13 positive5 negative

Customers like the durability of the weed moss control agent. They mention that it works great, lasts for weeks, and at least a year. The product turns brown and gradually wears away, with no sign of it dying. It's good for maintaining and does not get bad as quickly. It can be applied every 4 weeks as needed.

"...It also says it can be applied every 4 weeks as needed." Read more

"...I only used a small amount of this product so the bottle should last a long time." Read more

"...I have used for years, BUT....I lost 1/4 of a bottle due to a puncture in the bottle...." Read more

"...I sprayed this product and overnight, it was all cleaned. It does not get bad as quickly either." Read more

312 customers mention213 positive99 negative

Customers are mixed about the quality of the weed moss control agent. Some mention that it really cleans up the black and green mold on their deck, while others say that it didn't remove all of the stain. It takes a long time and several applications to completely remove the mold, lichen, and mosses.

"...It's not hard to figure out how to dilute it, and it really doesn't require scrubbing. . . what it requires is time...." Read more

"...I reapplied the treatment and after 4-6 months, all the moss was totally gone. Wish I had taken photos because the change was dramatic!..." Read more

"Product worked in some areas. Not enough to kill off the moss on slanted slopes or vertical areas." Read more

"...Just sprayed it on there and I walked away and it seems to get rid of all the algae in the mold and everything." Read more

54 customers mention28 positive26 negative

Customers are mixed about the color of the weed moss control agent. Some say that it removes all of the green stuff, while others say that the mosses discolored and started to turn brown.

"...I sprayed some on the siding on my shed and it did a great job removing the green algae, but did nothing for the black algae stains...." Read more

"...Over the years, moss developed. Large moss - like the size of marbles over a large area, like 20 x 30 feet...." Read more

"...It's been a little over a week now and there is no more green, and the mildew is ashen colored and dried out and flaking off...." Read more

"...For about 2 days it looked like I was GROWING moss, but then it began to turn brown and die...." Read more

162 customers mention25 positive137 negative

Customers are dissatisfied with the value of the weed moss control agent. They mention that it's overpriced for the job it did, and that it didn't work as expected. Some say that the product is not good for their application and that the results were disappointing. Overall, customers are disappointed with the product's value.

"...Sorry, I would not recommend or buy your product again, it simply didn't do the job." Read more

"...shed and it looks a million times better, but the product does not live up to its name. Perhaps it will be better now for preventative care." Read more

"...This is a very simply and easy product to use and although quite expensive,does a very nice ...." Read more

"...It did not do well at all on moss encrusted shingles, though it did kill the moss and turn it brown...." Read more

Great product but buy local.
4 Stars
Great product but buy local.
Great product! I have used for years, BUT....I lost 1/4 of a bottle due to a puncture in the bottle. Not sure if it happened in shipment BUT....bubble envelope for a bottle of liquid is no way to ship a 1/2 gal of expensive liquid product! I notified the seller but no response. Looks like they could have at least apologized and/or offered a credit of $7 of the product price of just under $28. I will go to Home Depot or the local hardware store next time. Cheaper in the long run. Too bad Wet and Forget do not ship their own product anymore. Never had a problem when they shipped in a box.
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